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160139687 = 1491074763
BaseRepresentation
bin10011000101110…
…00100110100111
3102011022221100112
421202320212213
5311443432222
623520203235
73653110361
oct1142704647
9364287315
10160139687
1182438354
124576951b
132723c216
14173a7d31
15e0d3be2
hex98b89a7

160139687 has 4 divisors (see below), whose sum is σ = 161214600. Its totient is φ = 159064776.

The previous prime is 160139621. The next prime is 160139689. The reversal of 160139687 is 786931061.

160139687 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 160139687 - 28 = 160139431 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 (160139689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 537233 + ... + 537530.

It is an arithmetic number, because the mean of its divisors is an integer number (40303650).

Almost surely, 2160139687 is an apocalyptic number.

160139687 is a deficient number, since it is larger than the sum of its proper divisors (1074913).

160139687 is a wasteful number, since it uses less digits than its factorization.

160139687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074912.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 160139687 is about 12654.6310495407. The cubic root of 160139687 is about 543.0414643871.

The spelling of 160139687 in words is "one hundred sixty million, one hundred thirty-nine thousand, six hundred eighty-seven".

Divisors: 1 149 1074763 160139687