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137918383 = 419734679
BaseRepresentation
bin10000011100001…
…11011110101111
3100121111222110021
420032013132233
5240301342013
621404023011
73263200261
oct1016073657
9317458407
10137918383
1170940139
123a231a67
132275ba15
1414461b31
15c194a8d
hex83877af

137918383 has 8 divisors (see below), whose sum is σ = 142742880. Its totient is φ = 133163520.

The previous prime is 137918381. The next prime is 137918387. The reversal of 137918383 is 383819731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 137918383 - 21 = 137918381 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 (137918381) 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, 13363 + ... + 21316.

It is an arithmetic number, because the mean of its divisors is an integer number (17842860).

Almost surely, 2137918383 is an apocalyptic number.

137918383 is a deficient number, since it is larger than the sum of its proper divisors (4824497).

137918383 is an equidigital number, since it uses as much as digits as its factorization.

137918383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34817.

The product of its digits is 108864, while the sum is 43.

The square root of 137918383 is about 11743.8657604726. The cubic root of 137918383 is about 516.6630288101.

The spelling of 137918383 in words is "one hundred thirty-seven million, nine hundred eighteen thousand, three hundred eighty-three".

Divisors: 1 41 97 3977 34679 1421839 3363863 137918383