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312142410 = 2345312401
BaseRepresentation
bin10010100110101…
…110101001001010
3210202100110220000
4102212232221022
51114402024120
650550143430
710510111116
oct2246565112
9722313800
10312142410
11150218238
1288651b76
134c88c868
142d654746
151c60b990
hex129aea4a

312142410 has 120 divisors (see below), whose sum is σ = 869427108. Its totient is φ = 80352000.

The previous prime is 312142367. The next prime is 312142417. The reversal of 312142410 is 14241213.

It can be written as a sum of positive squares in 2 ways, for example, as 289646361 + 22496049 = 17019^2 + 4743^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312142417) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 778210 + ... + 778610.

Almost surely, 2312142410 is an apocalyptic number.

312142410 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 312142410, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (434713554).

312142410 is an abundant number, since it is smaller than the sum of its proper divisors (557284698).

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

312142410 is a wasteful number, since it uses less digits than its factorization.

312142410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482 (or 442 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 312142410 is about 17667.5524620701. The cubic root of 312142410 is about 678.3454657314.

Adding to 312142410 its reverse (14241213), we get a palindrome (326383623).

The spelling of 312142410 in words is "three hundred twelve million, one hundred forty-two thousand, four hundred ten".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 31 45 54 62 81 90 93 135 155 162 186 270 279 310 401 405 465 558 802 810 837 930 961 1203 1395 1674 1922 2005 2406 2511 2790 2883 3609 4010 4185 4805 5022 5766 6015 7218 8370 8649 9610 10827 12030 12431 12555 14415 17298 18045 21654 24862 25110 25947 28830 32481 36090 37293 43245 51894 54135 62155 64962 74586 77841 86490 108270 111879 124310 129735 155682 162405 186465 223758 259470 324810 335637 372930 385361 389205 559395 671274 770722 778410 1006911 1118790 1156083 1678185 1926805 2013822 2312166 3356370 3468249 3853610 5034555 5780415 6936498 10069110 10404747 11560830 17341245 20809494 31214241 34682490 52023735 62428482 104047470 156071205 312142410