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12557065358307 = 319730930140839
BaseRepresentation
bin1011011010111010101101…
…1010111000101111100011
31122110102222110211101012010
42312232223122320233203
53121213332212431212
642412345230004003
72434134533306031
oct266565332705743
948412873741163
1012557065358307
11400147003a648
1214a9787946603
137011842b8162
14315a9da23551
1516b98882303c
hexb6bab6b8be3

12557065358307 has 16 divisors (see below), whose sum is σ = 17626363232000. Its totient is φ = 7929692787744.

The previous prime is 12557065358263. The next prime is 12557065358323. The reversal of 12557065358307 is 70385356075521.

It is not a de Polignac number, because 12557065358307 - 27 = 12557065358179 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (12557065398307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14653807 + ... + 15487032.

It is an arithmetic number, because the mean of its divisors is an integer number (1101647702000).

Almost surely, 212557065358307 is an apocalyptic number.

12557065358307 is a deficient number, since it is larger than the sum of its proper divisors (5069297873693).

12557065358307 is a wasteful number, since it uses less digits than its factorization.

12557065358307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30148170.

The product of its (nonzero) digits is 26460000, while the sum is 57.

The spelling of 12557065358307 in words is "twelve trillion, five hundred fifty-seven billion, sixty-five million, three hundred fifty-eight thousand, three hundred seven".

Divisors: 1 3 19 57 7309 21927 138871 416613 30140839 90422517 572675941 1718027823 220299392251 660898176753 4185688452769 12557065358307