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15128953089 = 3171793834327
BaseRepresentation
bin11100001011100000…
…11000000100000001
31110001100210110001220
432011300120010001
5221441002444324
610541121545253
71043623656645
oct160560300401
943040713056
1015128953089
116463999418
122b227a5229
131571489163
14a373d0c25
155d82d7b79
hex385c18101

15128953089 has 32 divisors (see below), whose sum is σ = 21538897920. Its totient is φ = 9412822272.

The previous prime is 15128953079. The next prime is 15128953127. The reversal of 15128953089 is 98035982151.

It is not a de Polignac number, because 15128953089 - 28 = 15128952833 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (15128953019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3494244 + ... + 3498570.

It is an arithmetic number, because the mean of its divisors is an integer number (673090560).

Almost surely, 215128953089 is an apocalyptic number.

It is an amenable number.

15128953089 is a deficient number, since it is larger than the sum of its proper divisors (6409944831).

15128953089 is a wasteful number, since it uses less digits than its factorization.

15128953089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4909.

The product of its (nonzero) digits is 777600, while the sum is 51.

The spelling of 15128953089 in words is "fifteen billion, one hundred twenty-eight million, nine hundred fifty-three thousand, eighty-nine".

Divisors: 1 3 17 51 179 383 537 1149 3043 4327 6511 9129 12981 19533 68557 73559 205671 220677 774533 1165469 1657241 2323599 3496407 4971723 13167061 28173097 39501183 84519291 296646139 889938417 5042984363 15128953089