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13220112912 = 2431303211373
BaseRepresentation
bin11000100111111101…
…01110101000010000
31021010022222022121120
430103332232220100
5204033322103122
610023452522240
7645415051146
oct142376565020
937108868546
1013220112912
115674455556
12268b480380
131328b7b926
148d5aa5596
1552593075c
hex313faea10

13220112912 has 40 divisors (see below), whose sum is σ = 34178330304. Its totient is φ = 4403301504.

The previous prime is 13220112911. The next prime is 13220112959. The reversal of 13220112912 is 21921102231.

13220112912 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (13220112911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43143 + ... + 168230.

Almost surely, 213220112912 is an apocalyptic number.

13220112912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13220112912 is an abundant number, since it is smaller than the sum of its proper divisors (20958217392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13220112912 is a wasteful number, since it uses less digits than its factorization.

13220112912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212687 (or 212681 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

The spelling of 13220112912 in words is "thirteen billion, two hundred twenty million, one hundred twelve thousand, nine hundred twelve".

Divisors: 1 2 3 4 6 8 12 16 24 48 1303 2606 3909 5212 7818 10424 15636 20848 31272 62544 211373 422746 634119 845492 1268238 1690984 2536476 3381968 5072952 10145904 275419019 550838038 826257057 1101676076 1652514114 2203352152 3305028228 4406704304 6610056456 13220112912