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12302213144 = 2313131902981
BaseRepresentation
bin10110111010100010…
…01110000000011000
31011202100210011211212
423131101032000120
5200143331310034
65352423042252
7613601041424
oct133521160030
934670704755
1012302213144
115243307901
122473ba0388
131210958a80
14849c09b84
154c006a2ce
hex2dd44e018

12302213144 has 32 divisors (see below), whose sum is σ = 25030661040. Its totient is φ = 5634595200.

The previous prime is 12302213101. The next prime is 12302213167. The reversal of 12302213144 is 44131220321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 437867 + ... + 465114.

Almost surely, 212302213144 is an apocalyptic number.

It is an amenable number.

12302213144 is an abundant number, since it is smaller than the sum of its proper divisors (12728447896).

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

12302213144 is a wasteful number, since it uses less digits than its factorization.

12302213144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 903131 (or 903127 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 12302213144 its reverse (44131220321), we get a palindrome (56433433465).

The spelling of 12302213144 in words is "twelve billion, three hundred two million, two hundred thirteen thousand, one hundred forty-four".

Divisors: 1 2 4 8 13 26 52 104 131 262 524 1048 1703 3406 6812 13624 902981 1805962 3611924 7223848 11738753 23477506 46955012 93910024 118290511 236581022 473162044 946324088 1537776643 3075553286 6151106572 12302213144