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139496652 = 223231239523
BaseRepresentation
bin10000101000010…
…00110011001100
3100201111011102200
420110020303030
5241202343102
621501521500
73312462531
oct1024106314
9321434380
10139496652
1171818999
123a873290
1322b921c9
1414752d88
15c3a751c
hex8508ccc

139496652 has 72 divisors (see below), whose sum is σ = 366213120. Its totient is φ = 44724960.

The previous prime is 139496629. The next prime is 139496653. The reversal of 139496652 is 256694931.

It is a junction number, because it is equal to n+sod(n) for n = 139496598 and 139496607.

It is not an unprimeable number, because it can be changed into a prime (139496653) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 266463 + ... + 266985.

Almost surely, 2139496652 is an apocalyptic number.

139496652 is a gapful number since it is divisible by the number (12) 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 139496652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183106560).

139496652 is an abundant number, since it is smaller than the sum of its proper divisors (226716468).

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

139496652 is a wasteful number, since it uses less digits than its factorization.

139496652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803 (or 798 counting only the distinct ones).

The product of its digits is 349920, while the sum is 45.

The square root of 139496652 is about 11810.8700780256. The cubic root of 139496652 is about 518.6263696867.

The spelling of 139496652 in words is "one hundred thirty-nine million, four hundred ninety-six thousand, six hundred fifty-two".

Divisors: 1 2 3 4 6 9 12 18 31 36 62 93 124 186 239 279 372 478 523 558 717 956 1046 1116 1434 1569 2092 2151 2868 3138 4302 4707 6276 7409 8604 9414 14818 16213 18828 22227 29636 32426 44454 48639 64852 66681 88908 97278 124997 133362 145917 194556 249994 266724 291834 374991 499988 583668 749982 1124973 1499964 2249946 3874907 4499892 7749814 11624721 15499628 23249442 34874163 46498884 69748326 139496652