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13992512 = 261937311
BaseRepresentation
bin110101011000…
…001001000000
3222022220010012
4311120021000
512040230022
61215524052
7226635332
oct65301100
928286105
1013992512
117997866
124829628
132b8bbc1
141c03452
151365de2
hexd58240

13992512 has 56 divisors (see below), whose sum is σ = 30114240. Its totient is φ = 6428160.

The previous prime is 13992509. The next prime is 13992523. The reversal of 13992512 is 21529931.

It is a Harshad number since it is a multiple of its sum of digits (32).

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, 44837 + ... + 45147.

Almost surely, 213992512 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 13992512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15057120).

13992512 is an abundant number, since it is smaller than the sum of its proper divisors (16121728).

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

13992512 is a wasteful number, since it uses less digits than its factorization.

13992512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379 (or 369 counting only the distinct ones).

The product of its digits is 4860, while the sum is 32.

The square root of 13992512 is about 3740.6566268504. The cubic root of 13992512 is about 240.9712493609.

The spelling of 13992512 in words is "thirteen million, nine hundred ninety-two thousand, five hundred twelve".

Divisors: 1 2 4 8 16 19 32 37 38 64 74 76 148 152 296 304 311 592 608 622 703 1184 1216 1244 1406 2368 2488 2812 4976 5624 5909 9952 11248 11507 11818 19904 22496 23014 23636 44992 46028 47272 92056 94544 184112 189088 218633 368224 378176 437266 736448 874532 1749064 3498128 6996256 13992512