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57122716 = 2272040097
BaseRepresentation
bin1101100111100…
…1111110011100
310222111010122011
43121321332130
5104110411331
65400201004
71262351350
oct331717634
9128433564
1057122716
112a276162
1217169164
13bab0431
14782d460
1550353b1
hex3679f9c

57122716 has 12 divisors (see below), whose sum is σ = 114245488. Its totient is φ = 24481152.

The previous prime is 57122713. The next prime is 57122729. The reversal of 57122716 is 61722175.

57122716 is an admirable number.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57122713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1020021 + ... + 1020076.

Almost surely, 257122716 is an apocalyptic number.

It is an amenable number.

57122716 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

57122716 is a wasteful number, since it uses less digits than its factorization.

57122716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2040108 (or 2040106 counting only the distinct ones).

The product of its digits is 5880, while the sum is 31.

The square root of 57122716 is about 7557.9571313947. The cubic root of 57122716 is about 385.1260980102.

The spelling of 57122716 in words is "fifty-seven million, one hundred twenty-two thousand, seven hundred sixteen".

Divisors: 1 2 4 7 14 28 2040097 4080194 8160388 14280679 28561358 57122716