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1055055513 = 31720687363
BaseRepresentation
bin111110111000101…
…101111010011001
32201112021101002010
4332320231322121
54130043234023
6252405300133
735100552411
oct7670557231
92645241063
101055055513
114a1607906
12255404649
1313a775705
14a019d641
1562959093
hex3ee2de99

1055055513 has 8 divisors (see below), whose sum is σ = 1489490208. Its totient is φ = 661995584.

The previous prime is 1055055511. The next prime is 1055055539. The reversal of 1055055513 is 3155505501.

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 1055055513 - 21 = 1055055511 is a prime.

It is a super-2 number, since 2×10550555132 = 2226284271023386338, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1055055511) 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, 10343631 + ... + 10343732.

It is an arithmetic number, because the mean of its divisors is an integer number (186186276).

Almost surely, 21055055513 is an apocalyptic number.

It is an amenable number.

1055055513 is a deficient number, since it is larger than the sum of its proper divisors (434434695).

1055055513 is a wasteful number, since it uses less digits than its factorization.

1055055513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20687383.

The product of its (nonzero) digits is 9375, while the sum is 30.

The square root of 1055055513 is about 32481.6180785379. The cubic root of 1055055513 is about 1018.0249854593.

The spelling of 1055055513 in words is "one billion, fifty-five million, fifty-five thousand, five hundred thirteen".

Divisors: 1 3 17 51 20687363 62062089 351685171 1055055513