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122764914139 = 723088181131
BaseRepresentation
bin111001001010101011…
…0111110110111011011
3102201212200211210122211
41302111112332313123
54002410304223024
6132221502055551
711604141360400
oct1622526766733
9381780753584
10122764914139
114807865902a
121b96187a5b7
13b765c7b73a
145d286362a7
1532d7aae594
hex1c955beddb

122764914139 has 12 divisors (see below), whose sum is σ = 142814550168. Its totient is φ = 105222364800.

The previous prime is 122764914131. The next prime is 122764914157. The reversal of 122764914139 is 931419467221.

It is not a de Polignac number, because 122764914139 - 23 = 122764914131 is a prime.

It is a super-2 number, since 2×1227649141392 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122764914092 and 122764914101.

It is not an unprimeable number, because it can be changed into a prime (122764914131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1472604 + ... + 1553734.

It is an arithmetic number, because the mean of its divisors is an integer number (11901212514).

Almost surely, 2122764914139 is an apocalyptic number.

122764914139 is a deficient number, since it is larger than the sum of its proper divisors (20049636029).

122764914139 is an equidigital number, since it uses as much as digits as its factorization.

122764914139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112026 (or 112019 counting only the distinct ones).

The product of its digits is 653184, while the sum is 49.

The spelling of 122764914139 in words is "one hundred twenty-two billion, seven hundred sixty-four million, nine hundred fourteen thousand, one hundred thirty-nine".

Divisors: 1 7 49 30881 81131 216167 567917 1513169 3975419 2505406411 17537844877 122764914139