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137390952 = 23319729059
BaseRepresentation
bin10000011000001…
…10101101101000
3100120112011221210
420030012231220
5240133002302
621344433120
73255542466
oct1014065550
9316464853
10137390952
117060a946
123a0187a0
132260592a
1414365836
15c0dd66c
hex8306b68

137390952 has 32 divisors (see below), whose sum is σ = 345232800. Its totient is φ = 45562944.

The previous prime is 137390947. The next prime is 137390987. The reversal of 137390952 is 259093731.

It is a self number, because there is not a number n which added to its sum of digits gives 137390952.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9802 + ... + 19257.

It is an arithmetic number, because the mean of its divisors is an integer number (10788525).

Almost surely, 2137390952 is an apocalyptic number.

137390952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

137390952 is an abundant number, since it is smaller than the sum of its proper divisors (207841848).

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

137390952 is a wasteful number, since it uses less digits than its factorization.

137390952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29265 (or 29261 counting only the distinct ones).

The product of its (nonzero) digits is 51030, while the sum is 39.

The square root of 137390952 is about 11721.3886549333. The cubic root of 137390952 is about 516.0035754815.

The spelling of 137390952 in words is "one hundred thirty-seven million, three hundred ninety thousand, nine hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 24 197 394 591 788 1182 1576 2364 4728 29059 58118 87177 116236 174354 232472 348708 697416 5724623 11449246 17173869 22898492 34347738 45796984 68695476 137390952