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137834020 = 22544915349
BaseRepresentation
bin10000011011100…
…10111000100100
3100121100200201201
420031302320210
5240241142040
621402132244
73262366312
oct1015627044
9317320651
10137834020
1170892815
123a1b1084
132272c4bc
141443d0b2
15c179a9a
hex8372e24

137834020 has 24 divisors (see below), whose sum is σ = 290115000. Its totient is φ = 55007232.

The previous prime is 137834003. The next prime is 137834023. The reversal of 137834020 is 20438731.

It can be written as a sum of positive squares in 4 ways, for example, as 11451456 + 126382564 = 3384^2 + 11242^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 137834020.

It is not an unprimeable number, because it can be changed into a prime (137834023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1306 + ... + 16654.

It is an arithmetic number, because the mean of its divisors is an integer number (12088125).

Almost surely, 2137834020 is an apocalyptic number.

137834020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

137834020 is an abundant number, since it is smaller than the sum of its proper divisors (152280980).

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

137834020 is a wasteful number, since it uses less digits than its factorization.

137834020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15807 (or 15805 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 137834020 is about 11740.2734210069. The cubic root of 137834020 is about 516.5576618231.

The spelling of 137834020 in words is "one hundred thirty-seven million, eight hundred thirty-four thousand, twenty".

Divisors: 1 2 4 5 10 20 449 898 1796 2245 4490 8980 15349 30698 61396 76745 153490 306980 6891701 13783402 27566804 34458505 68917010 137834020