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56105071607 = 1389241201211
BaseRepresentation
bin110100010000000111…
…110111001111110111
312100211001120221110002
4310100013313033313
51404400344242412
641435130221515
74024223145224
oct642007671767
9170731527402
1056105071607
1121880939782
12aa5958489b
1353a1836830
142a0349094b
1516d5834dc2
hexd101f73f7

56105071607 has 16 divisors (see below), whose sum is σ = 61353563040. Its totient is φ = 50994662400.

The previous prime is 56105071579. The next prime is 56105071609. The reversal of 56105071607 is 70617050165.

It is a cyclic number.

It is not a de Polignac number, because 56105071607 - 212 = 56105067511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56105071609) 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, 178232 + ... + 379442.

It is an arithmetic number, because the mean of its divisors is an integer number (3834597690).

Almost surely, 256105071607 is an apocalyptic number.

56105071607 is a deficient number, since it is larger than the sum of its proper divisors (5248491433).

56105071607 is a wasteful number, since it uses less digits than its factorization.

56105071607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201554.

The product of its (nonzero) digits is 44100, while the sum is 38.

The spelling of 56105071607 in words is "fifty-six billion, one hundred five million, seventy-one thousand, six hundred seven".

Divisors: 1 13 89 241 1157 3133 21449 201211 278837 2615743 17907779 48491851 232801127 630394063 4315774739 56105071607