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57438310716 = 22322955017539
BaseRepresentation
bin110101011111100101…
…110001000100111100
312111020222022111200100
4311133211301010330
51420113201420331
642215314201100
74102242404553
oct653745610474
9174228274610
1057438310716
11223a5479a86
12b16bb83190
135554b0bc07
142acc584d9a
1517628ddae6
hexd5f97113c

57438310716 has 36 divisors (see below), whose sum is σ = 150197884200. Its totient is φ = 18485892768.

The previous prime is 57438310693. The next prime is 57438310747. The reversal of 57438310716 is 61701383475.

57438310716 is a `hidden beast` number, since 574 + 3 + 8 + 3 + 1 + 0 + 71 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27507726 + ... + 27509813.

It is an arithmetic number, because the mean of its divisors is an integer number (4172163450).

Almost surely, 257438310716 is an apocalyptic number.

It is an amenable number.

57438310716 is an abundant number, since it is smaller than the sum of its proper divisors (92759573484).

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

57438310716 is a wasteful number, since it uses less digits than its factorization.

57438310716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55017578 (or 55017573 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The spelling of 57438310716 in words is "fifty-seven billion, four hundred thirty-eight million, three hundred ten thousand, seven hundred sixteen".

Divisors: 1 2 3 4 6 9 12 18 29 36 58 87 116 174 261 348 522 1044 55017539 110035078 165052617 220070156 330105234 495157851 660210468 990315702 1595508631 1980631404 3191017262 4786525893 6382034524 9573051786 14359577679 19146103572 28719155358 57438310716