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137036389 = 73399523
BaseRepresentation
bin10000010101100…
…00001001100101
3100112212011120211
420022300021211
5240040131024
621333055421
73252535000
oct1012601145
9315764524
10137036389
1170398516
1239a87571
1322510429
14142b2537
15c06d594
hex82b0265

137036389 has 8 divisors (see below), whose sum is σ = 159809600. Its totient is φ = 117459468.

The previous prime is 137036377. The next prime is 137036407. The reversal of 137036389 is 983630731.

It is not a de Polignac number, because 137036389 - 27 = 137036261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137036329) 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, 199419 + ... + 200104.

It is an arithmetic number, because the mean of its divisors is an integer number (19976200).

Almost surely, 2137036389 is an apocalyptic number.

It is an amenable number.

137036389 is a deficient number, since it is larger than the sum of its proper divisors (22773211).

137036389 is an frugal number, since it uses more digits than its factorization.

137036389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399544 (or 399530 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 137036389 is about 11706.2542685523. The cubic root of 137036389 is about 515.5593119087.

The spelling of 137036389 in words is "one hundred thirty-seven million, thirty-six thousand, three hundred eighty-nine".

Divisors: 1 7 49 343 399523 2796661 19576627 137036389