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15530055055 = 523457461641
BaseRepresentation
bin11100111011010100…
…11101010110001111
31111002022112112112021
432131222131112033
5223301143230210
611045010551011
71056564201304
oct163552352617
944068475467
1015530055055
11664a347249
123014b98467
1316065c51b8
14a747a10ab
1560d617bda
hex39da9d58f

15530055055 has 32 divisors (see below), whose sum is σ = 19561627008. Its totient is φ = 11813683200.

The previous prime is 15530055049. The next prime is 15530055091. The reversal of 15530055055 is 55055003551.

It is not a de Polignac number, because 15530055055 - 225 = 15496500623 is a prime.

It is a super-2 number, since 2×155300550552 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15530055055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24227535 + ... + 24228175.

It is an arithmetic number, because the mean of its divisors is an integer number (611300844).

Almost surely, 215530055055 is an apocalyptic number.

15530055055 is a deficient number, since it is larger than the sum of its proper divisors (4031571953).

15530055055 is a wasteful number, since it uses less digits than its factorization.

15530055055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1587.

The product of its (nonzero) digits is 46875, while the sum is 34.

The spelling of 15530055055 in words is "fifteen billion, five hundred thirty million, fifty-five thousand, fifty-five".

Divisors: 1 5 23 115 457 461 641 2285 2305 3205 10511 10603 14743 52555 53015 73715 210677 292937 295501 1053385 1464685 1477505 4845571 6737551 6796523 24227855 33687755 33982615 135043957 675219785 3106011011 15530055055