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1056057751 = 72170912611
BaseRepresentation
bin111110111100100…
…010100110010111
32201121011021220001
4332330202212113
54130322322001
6252442552131
735112225400
oct7674424627
92647137801
101056057751
114a2131901
12255808647
1313aa36958
14a03809a7
1562aa6001
hex3ef22997

1056057751 has 12 divisors (see below), whose sum is σ = 1229291640. Its totient is φ = 904590960.

The previous prime is 1056057671. The next prime is 1056057797. The reversal of 1056057751 is 1577506501.

It is not a de Polignac number, because 1056057751 - 219 = 1055533463 is a prime.

It is a super-3 number, since 3×10560577513 (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1056057751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1056051751) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77436 + ... + 90046.

It is an arithmetic number, because the mean of its divisors is an integer number (102440970).

Almost surely, 21056057751 is an apocalyptic number.

1056057751 is a deficient number, since it is larger than the sum of its proper divisors (173233889).

1056057751 is a wasteful number, since it uses less digits than its factorization.

1056057751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14334 (or 14327 counting only the distinct ones).

The product of its (nonzero) digits is 36750, while the sum is 37.

The square root of 1056057751 is about 32497.0421884823. The cubic root of 1056057751 is about 1018.3472371981.

The spelling of 1056057751 in words is "one billion, fifty-six million, fifty-seven thousand, seven hundred fifty-one".

Divisors: 1 7 49 1709 11963 12611 83741 88277 617939 21552199 150865393 1056057751