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1055054831 = 1465771983
BaseRepresentation
bin111110111000101…
…101101111101111
32201112021100010212
4332320231233233
54130043223311
6252405253035
735100550415
oct7670555757
92645240125
101055054831
114a1607346
1225540417b
1313a7752cc
14a019d2b5
1562958c8b
hex3ee2dbef

1055054831 has 4 divisors (see below), whose sum is σ = 1055141472. Its totient is φ = 1054968192.

The previous prime is 1055054821. The next prime is 1055054839. The reversal of 1055054831 is 1384505501.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1055054831 - 214 = 1055038447 is a prime.

It is a super-2 number, since 2×10550548312 = 2226281392832877122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055054839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21335 + ... + 50648.

It is an arithmetic number, because the mean of its divisors is an integer number (263785368).

Almost surely, 21055054831 is an apocalyptic number.

1055054831 is a deficient number, since it is larger than the sum of its proper divisors (86641).

1055054831 is an equidigital number, since it uses as much as digits as its factorization.

1055054831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86640.

The product of its (nonzero) digits is 12000, while the sum is 32.

The square root of 1055054831 is about 32481.6075802907. The cubic root of 1055054831 is about 1018.0247661049.

The spelling of 1055054831 in words is "one billion, fifty-five million, fifty-four thousand, eight hundred thirty-one".

Divisors: 1 14657 71983 1055054831