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720104164 = 221313848157
BaseRepresentation
bin101010111010111…
…110101011100100
31212012000002012121
4222322332223210
52433321313124
6155242155324
723562533023
oct5272765344
91765002177
10720104164
1133a530a0a
121811b2b44
13b625b050
146b8cc8ba
15433442e4
hex2aebeae4

720104164 has 12 divisors (see below), whose sum is σ = 1357119484. Its totient is φ = 332355744.

The previous prime is 720104137. The next prime is 720104201. The reversal of 720104164 is 461401027.

It can be written as a sum of positive squares in 2 ways, for example, as 410062500 + 310041664 = 20250^2 + 17608^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6924027 + ... + 6924130.

Almost surely, 2720104164 is an apocalyptic number.

It is an amenable number.

720104164 is a deficient number, since it is larger than the sum of its proper divisors (637015320).

720104164 is a wasteful number, since it uses less digits than its factorization.

720104164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13848174 (or 13848172 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 720104164 is about 26834.7566413411. The cubic root of 720104164 is about 896.3241695461.

The spelling of 720104164 in words is "seven hundred twenty million, one hundred four thousand, one hundred sixty-four".

Divisors: 1 2 4 13 26 52 13848157 27696314 55392628 180026041 360052082 720104164