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1056707769 = 31389304439
BaseRepresentation
bin111110111111000…
…001010010111001
32201122101022112210
4332333001102321
54131004122034
6252504525333
735120603445
oct7677012271
92648338483
101056707769
114a2536207
12255a80849
1313ac03790
14a04ad825
1562b838e9
hex3efc14b9

1056707769 has 16 divisors (see below), whose sum is σ = 1534377600. Its totient is φ = 642973056.

The previous prime is 1056707767. The next prime is 1056707779. The reversal of 1056707769 is 9677076501.

It is a happy number.

It is not a de Polignac number, because 1056707769 - 21 = 1056707767 is a prime.

It is a super-2 number, since 2×10567077692 = 2233262618129914722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1056707761) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148749 + ... + 155690.

It is an arithmetic number, because the mean of its divisors is an integer number (95898600).

Almost surely, 21056707769 is an apocalyptic number.

It is an amenable number.

1056707769 is a deficient number, since it is larger than the sum of its proper divisors (477669831).

1056707769 is a wasteful number, since it uses less digits than its factorization.

1056707769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304544.

The product of its (nonzero) digits is 555660, while the sum is 48.

The square root of 1056707769 is about 32507.0418371158. The cubic root of 1056707769 is about 1018.5561298994.

The spelling of 1056707769 in words is "one billion, fifty-six million, seven hundred seven thousand, seven hundred sixty-nine".

Divisors: 1 3 13 39 89 267 1157 3471 304439 913317 3957707 11873121 27095071 81285213 352235923 1056707769