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1056056053 = 13313259537
BaseRepresentation
bin111110111100100…
…010001011110101
32201121011012120011
4332330202023311
54130322243203
6252442540221
735112220423
oct7674421365
92647135504
101056056053
114a21305a8
12255807671
1313aa35c50
14a0380113
1562aa576d
hex3ef222f5

1056056053 has 8 divisors (see below), whose sum is σ = 1140929048. Its totient is φ = 971702784.

The previous prime is 1056056051. The next prime is 1056056093. The reversal of 1056056053 is 3506506501.

It can be written as a sum of positive squares in 4 ways, for example, as 6749604 + 1049306449 = 2598^2 + 32393^2 .

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

It is not a de Polignac number, because 1056056053 - 21 = 1056056051 is a prime.

It is a super-3 number, since 3×10560560533 (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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (1056056051) 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, 125700 + ... + 133837.

It is an arithmetic number, because the mean of its divisors is an integer number (142616131).

Almost surely, 21056056053 is an apocalyptic number.

1056056053 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1056056053 is a deficient number, since it is larger than the sum of its proper divisors (84872995).

1056056053 is a wasteful number, since it uses less digits than its factorization.

1056056053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259863.

The product of its (nonzero) digits is 13500, while the sum is 31.

The square root of 1056056053 is about 32497.0160630172. The cubic root of 1056056053 is about 1018.3466914089.

The spelling of 1056056053 in words is "one billion, fifty-six million, fifty-six thousand, fifty-three".

Divisors: 1 13 313 4069 259537 3373981 81235081 1056056053