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12232251412 = 225054960497
BaseRepresentation
bin10110110010001100…
…10101100000010100
31011120111010202101121
423121012111200110
5200022424021122
65341443333324
7612061264363
oct133106254024
934514122347
1012232251412
115207872597
122454681244
1311cc3017b4
148407d77da
154b8d4abc7
hex2d9195814

12232251412 has 12 divisors (see below), whose sum is σ = 21407217300. Its totient is φ = 6115903616.

The previous prime is 12232251397. The next prime is 12232251461. The reversal of 12232251412 is 21415223221.

It can be written as a sum of positive squares in 2 ways, for example, as 10603644676 + 1628606736 = 102974^2 + 40356^2 .

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, 171948 + ... + 232444.

It is an arithmetic number, because the mean of its divisors is an integer number (1783934775).

Almost surely, 212232251412 is an apocalyptic number.

It is an amenable number.

12232251412 is a deficient number, since it is larger than the sum of its proper divisors (9174965888).

12232251412 is a wasteful number, since it uses less digits than its factorization.

12232251412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111050 (or 111048 counting only the distinct ones).

The product of its digits is 1920, while the sum is 25.

Adding to 12232251412 its reverse (21415223221), we get a palindrome (33647474633).

The spelling of 12232251412 in words is "twelve billion, two hundred thirty-two million, two hundred fifty-one thousand, four hundred twelve".

Divisors: 1 2 4 50549 60497 101098 120994 202196 241988 3058062853 6116125706 12232251412