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137470713 = 345823571
BaseRepresentation
bin10000011000110…
…10001011111001
3100120200020100220
420030122023321
5240143030323
621350250253
73256324152
oct1014321371
9316606326
10137470713
1170664866
123a056989
1322633023
1414386929
15c1070e3
hex831a2f9

137470713 has 4 divisors (see below), whose sum is σ = 183294288. Its totient is φ = 91647140.

The previous prime is 137470679. The next prime is 137470717. The reversal of 137470713 is 317074731.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 317074731 = 3105691577.

It is a cyclic number.

It is not a de Polignac number, because 137470713 - 28 = 137470457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (137470717) 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 3 ways as a sum of consecutive naturals, for example, 22911783 + ... + 22911788.

It is an arithmetic number, because the mean of its divisors is an integer number (45823572).

Almost surely, 2137470713 is an apocalyptic number.

It is an amenable number.

137470713 is a deficient number, since it is larger than the sum of its proper divisors (45823575).

137470713 is an equidigital number, since it uses as much as digits as its factorization.

137470713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45823574.

The product of its (nonzero) digits is 12348, while the sum is 33.

The square root of 137470713 is about 11724.7905311779. The cubic root of 137470713 is about 516.1034098076.

The spelling of 137470713 in words is "one hundred thirty-seven million, four hundred seventy thousand, seven hundred thirteen".

Divisors: 1 3 45823571 137470713