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137630830 = 2525154833
BaseRepresentation
bin10000011010000…
…01010001101110
3100120222101000011
420031001101232
5240213141310
621353523434
73260562031
oct1015012156
9316871004
10137630830
1170764097
123a11357a
132268ab7c
14143c9018
15c13978a
hex834146e

137630830 has 16 divisors (see below), whose sum is σ = 248727024. Its totient is φ = 54832000.

The previous prime is 137630821. The next prime is 137630833. The reversal of 137630830 is 38036731.

It is a junction number, because it is equal to n+sod(n) for n = 137630792 and 137630801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137630833) by changing a digit.

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, 24907 + ... + 29926.

It is an arithmetic number, because the mean of its divisors is an integer number (15545439).

Almost surely, 2137630830 is an apocalyptic number.

137630830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

137630830 is a deficient number, since it is larger than the sum of its proper divisors (111096194).

137630830 is a wasteful number, since it uses less digits than its factorization.

137630830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55091.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 137630830 is about 11731.6166831345. The cubic root of 137630830 is about 516.3037066932.

The spelling of 137630830 in words is "one hundred thirty-seven million, six hundred thirty thousand, eight hundred thirty".

Divisors: 1 2 5 10 251 502 1255 2510 54833 109666 274165 548330 13763083 27526166 68815415 137630830