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520234272 = 25331735419
BaseRepresentation
bin11111000000100…
…010010100100000
31100020220122021000
4133000202110200
52031134444042
6123342232000
715614626665
oct3700422440
91306818230
10520234272
11247727788
12126285600
1383a1b03c
144d141a6c
1530a1374c
hex1f022520

520234272 has 96 divisors (see below), whose sum is σ = 1606651200. Its totient is φ = 163206144.

The previous prime is 520234271. The next prime is 520234279. The reversal of 520234272 is 272432025.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (520234271) 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, 3022 + ... + 32397.

It is an arithmetic number, because the mean of its divisors is an integer number (16735950).

Almost surely, 2520234272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 520234272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (803325600).

520234272 is an abundant number, since it is smaller than the sum of its proper divisors (1086416928).

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

520234272 is a wasteful number, since it uses less digits than its factorization.

520234272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35455 (or 35441 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 520234272 is about 22808.6446769640. The cubic root of 520234272 is about 804.2658955697.

Adding to 520234272 its reverse (272432025), we get a palindrome (792666297).

The spelling of 520234272 in words is "five hundred twenty million, two hundred thirty-four thousand, two hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 16 17 18 24 27 32 34 36 48 51 54 68 72 96 102 108 136 144 153 204 216 272 288 306 408 432 459 544 612 816 864 918 1224 1632 1836 2448 3672 4896 7344 14688 35419 70838 106257 141676 212514 283352 318771 425028 566704 602123 637542 850056 956313 1133408 1204246 1275084 1700112 1806369 1912626 2408492 2550168 3400224 3612738 3825252 4816984 5100336 5419107 7225476 7650504 9633968 10200672 10838214 14450952 15301008 16257321 19267936 21676428 28901904 30602016 32514642 43352856 57803808 65029284 86705712 130058568 173411424 260117136 520234272