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137295861 = 3438312823
BaseRepresentation
bin10000010111011…
…11011111110101
3100120100100111220
420023233133311
5240121431421
621342420553
73254665323
oct1013573765
9316310456
10137295861
117055545a
1239b91759
13225a1571
141433cd13
15c0c03c6
hex82ef7f5

137295861 has 16 divisors (see below), whose sum is σ = 189590016. Its totient is φ = 88317936.

The previous prime is 137295857. The next prime is 137295941. The reversal of 137295861 is 168592731.

It is not a de Polignac number, because 137295861 - 22 = 137295857 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137295661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4296 + ... + 17118.

It is an arithmetic number, because the mean of its divisors is an integer number (11849376).

Almost surely, 2137295861 is an apocalyptic number.

It is an amenable number.

137295861 is a deficient number, since it is larger than the sum of its proper divisors (52294155).

137295861 is a wasteful number, since it uses less digits than its factorization.

137295861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12952.

The product of its digits is 90720, while the sum is 42.

The square root of 137295861 is about 11717.3316501668. The cubic root of 137295861 is about 515.8845025737.

The spelling of 137295861 in words is "one hundred thirty-seven million, two hundred ninety-five thousand, eight hundred sixty-one".

Divisors: 1 3 43 83 129 249 3569 10707 12823 38469 551389 1064309 1654167 3192927 45765287 137295861