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12450641442 = 23191031060351
BaseRepresentation
bin10111001100001110…
…11011011000100010
31012010201002010012020
423212013123120202
5200444331011232
65415244242310
7620352464121
oct134607333042
935121063166
1012450641442
11530a076218
1224b5840396
131235627475
14861805ab8
154cd0d8e2c
hex2e61db622

12450641442 has 32 divisors (see below), whose sum is σ = 26466385920. Its totient is φ = 3893605200.

The previous prime is 12450641431. The next prime is 12450641447. The reversal of 12450641442 is 24414605421.

12450641442 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12450641447) 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 15 ways as a sum of consecutive naturals, for example, 518434 + ... + 541917.

It is an arithmetic number, because the mean of its divisors is an integer number (827074560).

Almost surely, 212450641442 is an apocalyptic number.

12450641442 is an abundant number, since it is smaller than the sum of its proper divisors (14015744478).

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

12450641442 is a wasteful number, since it uses less digits than its factorization.

12450641442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060478.

The product of its (nonzero) digits is 30720, while the sum is 33.

The spelling of 12450641442 in words is "twelve billion, four hundred fifty million, six hundred forty-one thousand, four hundred forty-two".

Divisors: 1 2 3 6 19 38 57 103 114 206 309 618 1957 3914 5871 11742 1060351 2120702 3181053 6362106 20146669 40293338 60440007 109216153 120880014 218432306 327648459 655296918 2075106907 4150213814 6225320721 12450641442