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531712912 = 242911310141
BaseRepresentation
bin11111101100010…
…100101110010000
31101001111210222211
4133230110232100
52042104303122
6124432241504
716114325263
oct3754245620
91331453884
10531712912
11253157865
1212a0a0294
1386209933
145088ccda
1531a2e877
hex1fb14b90

531712912 has 40 divisors (see below), whose sum is σ = 1075254840. Its totient is φ = 254392320.

The previous prime is 531712901. The next prime is 531712933. The reversal of 531712912 is 219217135.

It can be written as a sum of positive squares in 4 ways, for example, as 4734976 + 526977936 = 2176^2 + 22956^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47362 + ... + 57502.

It is an arithmetic number, because the mean of its divisors is an integer number (26881371).

Almost surely, 2531712912 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 531712912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (537627420).

531712912 is an abundant number, since it is smaller than the sum of its proper divisors (543541928).

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

531712912 is a wasteful number, since it uses less digits than its factorization.

531712912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10291 (or 10285 counting only the distinct ones).

The product of its digits is 3780, while the sum is 31.

The square root of 531712912 is about 23058.9009278413. The cubic root of 531712912 is about 810.1381220538.

The spelling of 531712912 in words is "five hundred thirty-one million, seven hundred twelve thousand, nine hundred twelve".

Divisors: 1 2 4 8 16 29 58 113 116 226 232 452 464 904 1808 3277 6554 10141 13108 20282 26216 40564 52432 81128 162256 294089 588178 1145933 1176356 2291866 2352712 4583732 4705424 9167464 18334928 33232057 66464114 132928228 265856456 531712912