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137902900 = 22521379029
BaseRepresentation
bin10000011100000…
…11101100110100
3100121111012012211
420032003230310
5240300343100
621403423204
73263104162
oct1016035464
9317435184
10137902900
117092a543
123a224b04
1322754965
141445a232
15c1901ba
hex8383b34

137902900 has 18 divisors (see below), whose sum is σ = 299249510. Its totient is φ = 55161120.

The previous prime is 137902879. The next prime is 137902901. The reversal of 137902900 is 9209731.

It can be written as a sum of positive squares in 3 ways, for example, as 16990884 + 120912016 = 4122^2 + 10996^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137902901) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 689415 + ... + 689614.

Almost surely, 2137902900 is an apocalyptic number.

137902900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

137902900 is an abundant number, since it is smaller than the sum of its proper divisors (161346610).

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

137902900 is a wasteful number, since it uses less digits than its factorization.

137902900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1379043 (or 1379036 counting only the distinct ones).

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 137902900 is about 11743.2065467657. The cubic root of 137902900 is about 516.6436942035.

The spelling of 137902900 in words is "one hundred thirty-seven million, nine hundred two thousand, nine hundred".

Divisors: 1 2 4 5 10 20 25 50 100 1379029 2758058 5516116 6895145 13790290 27580580 34475725 68951450 137902900