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1057688512 = 26371273517
BaseRepresentation
bin111111000010110…
…000101111000000
32201201020010212121
4333002300233000
54131232013022
6252541534024
735132126656
oct7702605700
92651203777
101057688512
114a3046041
12256274314
1313b187cba
14a0686dd6
1562cc92c7
hex3f0b0bc0

1057688512 has 56 divisors (see below), whose sum is σ = 2173167104. Its totient is φ = 510354432.

The previous prime is 1057688503. The next prime is 1057688519. The reversal of 1057688512 is 2158867501.

It is a super-2 number, since 2×10576885122 = 2237409976833548288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1057688519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 298978 + ... + 302494.

Almost surely, 21057688512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1057688512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1086583552).

1057688512 is an abundant number, since it is smaller than the sum of its proper divisors (1115478592).

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

1057688512 is a wasteful number, since it uses less digits than its factorization.

1057688512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3693 (or 3683 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 43.

The square root of 1057688512 is about 32522.1234239095. The cubic root of 1057688512 is about 1018.8711438006.

The spelling of 1057688512 in words is "one billion, fifty-seven million, six hundred eighty-eight thousand, five hundred twelve".

Divisors: 1 2 4 8 16 32 37 64 74 127 148 254 296 508 592 1016 1184 2032 2368 3517 4064 4699 7034 8128 9398 14068 18796 28136 37592 56272 75184 112544 130129 150368 225088 260258 300736 446659 520516 893318 1041032 1786636 2082064 3573272 4164128 7146544 8328256 14293088 16526383 28586176 33052766 66105532 132211064 264422128 528844256 1057688512