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318020352 = 2831353601
BaseRepresentation
bin10010111101001…
…001101100000000
3211011102002220120
4102331021230000
51122403122402
651320140240
710611062016
oct2275115400
9734362816
10318020352
11153572441
128a607680
1350b6a130
14303448b6
151cdbd3bc
hex12f49b00

318020352 has 144 divisors (see below), whose sum is σ = 930248928. Its totient is φ = 95846400.

The previous prime is 318020323. The next prime is 318020357. The reversal of 318020352 is 253020813.

318020352 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×3180203522 = 202273888572407808, which contains 22 as substring.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (318020357) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 528852 + ... + 529452.

It is an arithmetic number, because the mean of its divisors is an integer number (6460062).

Almost surely, 2318020352 is an apocalyptic number.

318020352 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 318020352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (465124464).

318020352 is an abundant number, since it is smaller than the sum of its proper divisors (612228576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

318020352 is a wasteful number, since it uses less digits than its factorization.

318020352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686 (or 672 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 318020352 is about 17833.1251327410. The cubic root of 318020352 is about 682.5769806767.

It can be divided in two parts, 3180 and 20352, that added together give a palindrome (23532).

The spelling of 318020352 in words is "three hundred eighteen million, twenty thousand, three hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 13 16 24 26 32 39 48 52 53 64 78 96 104 106 128 156 159 192 208 212 256 312 318 384 416 424 601 624 636 689 768 832 848 1202 1248 1272 1378 1664 1696 1803 2067 2404 2496 2544 2756 3328 3392 3606 4134 4808 4992 5088 5512 6784 7212 7813 8268 9616 9984 10176 11024 13568 14424 15626 16536 19232 20352 22048 23439 28848 31252 31853 33072 38464 40704 44096 46878 57696 62504 63706 66144 76928 88192 93756 95559 115392 125008 127412 132288 153856 176384 187512 191118 230784 250016 254824 264576 375024 382236 414089 461568 500032 509648 529152 750048 764472 828178 1000064 1019296 1242267 1500096 1528944 1656356 2000128 2038592 2484534 3000192 3057888 3312712 4077184 4969068 6000384 6115776 6625424 8154368 9938136 12231552 13250848 19876272 24463104 26501696 39752544 53003392 79505088 106006784 159010176 318020352