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1055055047 = 19531047721
BaseRepresentation
bin111110111000101…
…101110011000111
32201112021100102212
4332320231303013
54130043230142
6252405254035
735100551144
oct7670556307
92645240385
101055055047
114a1607522
1225540431b
1313a775437
14a019d3cb
1562958d82
hex3ee2dcc7

1055055047 has 8 divisors (see below), whose sum is σ = 1131539760. Its totient is φ = 980665920.

The previous prime is 1055055031. The next prime is 1055055073. The reversal of 1055055047 is 7405505501.

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

It is a cyclic number.

It is not a de Polignac number, because 1055055047 - 24 = 1055055031 is a prime.

It is a super-2 number, since 2×10550550472 = 2226282304400344418, 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 (1055055007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 522854 + ... + 524867.

It is an arithmetic number, because the mean of its divisors is an integer number (141442470).

Almost surely, 21055055047 is an apocalyptic number.

1055055047 is a deficient number, since it is larger than the sum of its proper divisors (76484713).

1055055047 is a wasteful number, since it uses less digits than its factorization.

1055055047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1047793.

The product of its (nonzero) digits is 17500, while the sum is 32.

The square root of 1055055047 is about 32481.6109052491. The cubic root of 1055055047 is about 1018.0248355779.

The spelling of 1055055047 in words is "one billion, fifty-five million, fifty-five thousand, forty-seven".

Divisors: 1 19 53 1007 1047721 19906699 55529213 1055055047