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122372207031 = 340790735677
BaseRepresentation
bin111000111110111110…
…0111011000110110111
3102200212022220012210010
41301331330323012313
54001104241111111
6132114513031303
711561332411614
oct1617574730667
9380768805703
10122372207031
1147996a143a8
121b872255533
13b7027c1779
145ccc40d50b
1532b338baa6
hex1c7df3b1b7

122372207031 has 4 divisors (see below), whose sum is σ = 163162942712. Its totient is φ = 81581471352.

The previous prime is 122372207021. The next prime is 122372207047. The reversal of 122372207031 is 130702273221.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 122372207031 - 27 = 122372206903 is a prime.

It is a super-2 number, since 2×1223722070312 (a number of 23 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 122372207031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122372207011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20395367836 + ... + 20395367841.

It is an arithmetic number, because the mean of its divisors is an integer number (40790735678).

Almost surely, 2122372207031 is an apocalyptic number.

122372207031 is a deficient number, since it is larger than the sum of its proper divisors (40790735681).

122372207031 is an equidigital number, since it uses as much as digits as its factorization.

122372207031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40790735680.

The product of its (nonzero) digits is 7056, while the sum is 30.

The spelling of 122372207031 in words is "one hundred twenty-two billion, three hundred seventy-two million, two hundred seven thousand, thirty-one".

Divisors: 1 3 40790735677 122372207031