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164700757 = 1312669289
BaseRepresentation
bin10011101000100…
…10001001010101
3102110220122222001
421310102021111
5314130411012
624202035301
74036635064
oct1164221125
9373818861
10164700757
1184a73131
12471a8b31
1328178290
1417c341db
15e6d5357
hex9d12255

164700757 has 4 divisors (see below), whose sum is σ = 177370060. Its totient is φ = 152031456.

The previous prime is 164700751. The next prime is 164700779. The reversal of 164700757 is 757007461.

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

It can be written as a sum of positive squares in 2 ways, for example, as 20484676 + 144216081 = 4526^2 + 12009^2 .

It is a cyclic number.

It is not a de Polignac number, because 164700757 - 219 = 164176469 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 (164700751) 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, 6334632 + ... + 6334657.

It is an arithmetic number, because the mean of its divisors is an integer number (44342515).

Almost surely, 2164700757 is an apocalyptic number.

It is an amenable number.

164700757 is a deficient number, since it is larger than the sum of its proper divisors (12669303).

164700757 is a wasteful number, since it uses less digits than its factorization.

164700757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12669302.

The product of its (nonzero) digits is 41160, while the sum is 37.

The square root of 164700757 is about 12833.5792746996. The cubic root of 164700757 is about 548.1488808636.

The spelling of 164700757 in words is "one hundred sixty-four million, seven hundred thousand, seven hundred fifty-seven".

Divisors: 1 13 12669289 164700757