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712287380 = 22575087767
BaseRepresentation
bin101010011101001…
…010010010010100
31211122021221121002
4222131022102110
52424321144010
6154402442432
723436225410
oct5235122224
91748257532
10712287380
11336082062
1217a663418
13b475212c
146a855d40
15427ed1a5
hex2a74a494

712287380 has 24 divisors (see below), whose sum is σ = 1709490048. Its totient is φ = 244212768.

The previous prime is 712287379. The next prime is 712287413. The reversal of 712287380 is 83782217.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2543744 + ... + 2544023.

It is an arithmetic number, because the mean of its divisors is an integer number (71228752).

Almost surely, 2712287380 is an apocalyptic number.

712287380 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

712287380 is an abundant number, since it is smaller than the sum of its proper divisors (997202668).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

712287380 is a wasteful number, since it uses less digits than its factorization.

712287380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5087783 (or 5087781 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 38.

The square root of 712287380 is about 26688.7125954026. The cubic root of 712287380 is about 893.0691413882.

The spelling of 712287380 in words is "seven hundred twelve million, two hundred eighty-seven thousand, three hundred eighty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 5087767 10175534 20351068 25438835 35614369 50877670 71228738 101755340 142457476 178071845 356143690 712287380