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12344103140 = 2251072357559
BaseRepresentation
bin10110111111100010…
…00001000011100100
31011212021121102010012
423133301001003210
5200240042300030
65400520545352
7614620100615
oct133761010344
934767542105
1012344103140
115264a19436
122486022258
131219534955
148515d1c0c
154c3a92095
hex2dfc410e4

12344103140 has 24 divisors (see below), whose sum is σ = 25925484480. Its totient is φ = 4937095008.

The previous prime is 12344103067. The next prime is 12344103169. The reversal of 12344103140 is 4130144321.

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, 185681 + ... + 243239.

It is an arithmetic number, because the mean of its divisors is an integer number (1080228520).

Almost surely, 212344103140 is an apocalyptic number.

12344103140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12344103140 is an abundant number, since it is smaller than the sum of its proper divisors (13581381340).

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

12344103140 is a wasteful number, since it uses less digits than its factorization.

12344103140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68291 (or 68289 counting only the distinct ones).

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

Adding to 12344103140 its reverse (4130144321), we get a palindrome (16474247461).

The spelling of 12344103140 in words is "twelve billion, three hundred forty-four million, one hundred three thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 10723 21446 42892 53615 57559 107230 115118 214460 230236 287795 575590 1151180 617205157 1234410314 2468820628 3086025785 6172051570 12344103140