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1056798069 = 31918540317
BaseRepresentation
bin111110111111010…
…111010101110101
32201122112220102020
4332333113111311
54131020014234
6252510503353
735121430635
oct7677272565
92648486366
101056798069
114a2598038
12255b04b59
1313ac35902
14a04d46c5
1562ba0549
hex3efd7575

1056798069 has 8 divisors (see below), whose sum is σ = 1483225440. Its totient is φ = 667451376.

The previous prime is 1056798059. The next prime is 1056798079. The reversal of 1056798069 is 9608976501.

It is an interprime number because it is at equal distance from previous prime (1056798059) and next prime (1056798079).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1056798069 - 24 = 1056798053 is a prime.

It is a super-2 number, since 2×10567980692 = 2233644317284257522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1056798049) 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, 9270102 + ... + 9270215.

It is an arithmetic number, because the mean of its divisors is an integer number (185403180).

Almost surely, 21056798069 is an apocalyptic number.

1056798069 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1056798069 is a deficient number, since it is larger than the sum of its proper divisors (426427371).

1056798069 is a wasteful number, since it uses less digits than its factorization.

1056798069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18540339.

The product of its (nonzero) digits is 816480, while the sum is 51.

The square root of 1056798069 is about 32508.4307372718. The cubic root of 1056798069 is about 1018.5851423351.

The spelling of 1056798069 in words is "one billion, fifty-six million, seven hundred ninety-eight thousand, sixty-nine".

Divisors: 1 3 19 57 18540317 55620951 352266023 1056798069