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12387353948 = 223096838487
BaseRepresentation
bin10111000100101100…
…00000010101011100
31011222021222210001222
423202112000111130
5200332130311243
65405103552512
7615653525354
oct134226002534
934867883058
1012387353948
11528737a402
1224985bb738
131225499048
1485724db64
154c7787168
hex2e258055c

12387353948 has 6 divisors (see below), whose sum is σ = 21677869416. Its totient is φ = 6193676972.

The previous prime is 12387353921. The next prime is 12387353963. The reversal of 12387353948 is 84935378321.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12387353948.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1548419240 + ... + 1548419247.

It is an arithmetic number, because the mean of its divisors is an integer number (3612978236).

Almost surely, 212387353948 is an apocalyptic number.

It is an amenable number.

12387353948 is a deficient number, since it is larger than the sum of its proper divisors (9290515468).

12387353948 is a wasteful number, since it uses less digits than its factorization.

12387353948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3096838491 (or 3096838489 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 53.

The spelling of 12387353948 in words is "twelve billion, three hundred eighty-seven million, three hundred fifty-three thousand, nine hundred forty-eight".

Divisors: 1 2 4 3096838487 6193676974 12387353948