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12210024144 = 243254375503
BaseRepresentation
bin10110101111100011…
…00010111011010000
31011111221022111022110
423113301202323100
5200001231233034
65335331105320
7611401331013
oct132761427320
934457274273
1012210024144
1151a627094a
122449142240
1311c781b676
1483b88d37a
154b6e09de9
hex2d7c62ed0

12210024144 has 20 divisors (see below), whose sum is σ = 31542562496. Its totient is φ = 4070008032.

The previous prime is 12210024133. The next prime is 12210024163. The reversal of 12210024144 is 44142001221.

It is a self number, because there is not a number n which added to its sum of digits gives 12210024144.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127187704 + ... + 127187799.

Almost surely, 212210024144 is an apocalyptic number.

It is an amenable number.

12210024144 is an abundant number, since it is smaller than the sum of its proper divisors (19332538352).

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

12210024144 is a wasteful number, since it uses less digits than its factorization.

12210024144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254375514 (or 254375508 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 12210024144 its reverse (44142001221), we get a palindrome (56352025365).

The spelling of 12210024144 in words is "twelve billion, two hundred ten million, twenty-four thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 8 12 16 24 48 254375503 508751006 763126509 1017502012 1526253018 2035004024 3052506036 4070008048 6105012072 12210024144