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137866994 = 268933497
BaseRepresentation
bin10000011011110…
…10111011110010
3100121102100221222
420031322323302
5240243220434
621402545042
73262564406
oct1015727362
9317370858
10137866994
1170905571
123a208182
1322741505
141444b106
15c18472e
hex837aef2

137866994 has 4 divisors (see below), whose sum is σ = 206800494. Its totient is φ = 68933496.

The previous prime is 137866961. The next prime is 137866999. The reversal of 137866994 is 499668731.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 71656225 + 66210769 = 8465^2 + 8137^2 .

It is not an unprimeable number, because it can be changed into a prime (137866999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34466747 + ... + 34466750.

Almost surely, 2137866994 is an apocalyptic number.

137866994 is a deficient number, since it is larger than the sum of its proper divisors (68933500).

137866994 is an equidigital number, since it uses as much as digits as its factorization.

137866994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68933499.

The product of its digits is 1959552, while the sum is 53.

The square root of 137866994 is about 11741.6776484453. The cubic root of 137866994 is about 516.5988505279.

The spelling of 137866994 in words is "one hundred thirty-seven million, eight hundred sixty-six thousand, nine hundred ninety-four".

Divisors: 1 2 68933497 137866994