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137404369 = 23311031871
BaseRepresentation
bin10000011000010…
…01111111010001
3100120112212100201
420030021333101
5240133414434
621345015201
73255626554
oct1014117721
9316485321
10137404369
1170619a33
123a024501
132260ba7b
141436a69b
15c0e2614
hex8309fd1

137404369 has 16 divisors (see below), whose sum is σ = 149520384. Its totient is φ = 125888400.

The previous prime is 137404367. The next prime is 137404381. The reversal of 137404369 is 963404731.

It is a cyclic number.

It is not a de Polignac number, because 137404369 - 21 = 137404367 is a prime.

It is a super-2 number, since 2×1374043692 = 37759921240576322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137404361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72504 + ... + 74374.

It is an arithmetic number, because the mean of its divisors is an integer number (9345024).

Almost surely, 2137404369 is an apocalyptic number.

It is an amenable number.

137404369 is a deficient number, since it is larger than the sum of its proper divisors (12116015).

137404369 is a wasteful number, since it uses less digits than its factorization.

137404369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2028.

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 137404369 is about 11721.9609707591. The cubic root of 137404369 is about 516.0203718195.

The spelling of 137404369 in words is "one hundred thirty-seven million, four hundred four thousand, three hundred sixty-nine".

Divisors: 1 23 31 103 713 1871 2369 3193 43033 58001 73439 192713 1334023 4432399 5974103 137404369