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137878941 = 34143131199
BaseRepresentation
bin10000011011111…
…01110110011101
3100121102222100110
420031331312131
5240244111231
621403120233
73262644264
oct1015756635
9317388313
10137878941
1170913542
123a213079
1322746a95
14144515db
15c188046
hex837dd9d

137878941 has 32 divisors (see below), whose sum is σ = 195148800. Its totient is φ = 86486400.

The previous prime is 137878933. The next prime is 137878981. The reversal of 137878941 is 149878731.

It is not a de Polignac number, because 137878941 - 23 = 137878933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137878931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 692760 + ... + 692958.

It is an arithmetic number, because the mean of its divisors is an integer number (6098400).

Almost surely, 2137878941 is an apocalyptic number.

It is an amenable number.

137878941 is a deficient number, since it is larger than the sum of its proper divisors (57269859).

137878941 is a wasteful number, since it uses less digits than its factorization.

137878941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417.

The product of its digits is 338688, while the sum is 48.

The square root of 137878941 is about 11742.1863807385. The cubic root of 137878941 is about 516.6137722241.

The spelling of 137878941 in words is "one hundred thirty-seven million, eight hundred seventy-eight thousand, nine hundred forty-one".

Divisors: 1 3 41 43 123 129 131 199 393 597 1763 5289 5371 5633 8159 8557 16113 16899 24477 25671 26069 78207 230953 350837 692859 1052511 1068829 1120967 3206487 3362901 45959647 137878941