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12387051016 = 231669992723
BaseRepresentation
bin10111000100101001…
…10110011000001000
31011222021102101112021
423202110312120020
5200332041113031
65405053254224
7615651124234
oct134224663010
934867371467
1012387051016
11528719284a
122498494374
1312253c11b2
148571b15c4
154c7727511
hex2e2536608

12387051016 has 16 divisors (see below), whose sum is σ = 23227362000. Its totient is φ = 6193087824.

The previous prime is 12387051013. The next prime is 12387051043. The reversal of 12387051016 is 61015078321.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12387051011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87231 + ... + 179953.

It is an arithmetic number, because the mean of its divisors is an integer number (1451710125).

Almost surely, 212387051016 is an apocalyptic number.

It is an amenable number.

12387051016 is a deficient number, since it is larger than the sum of its proper divisors (10840310984).

12387051016 is a wasteful number, since it uses less digits than its factorization.

12387051016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109428 (or 109424 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 34.

The spelling of 12387051016 in words is "twelve billion, three hundred eighty-seven million, fifty-one thousand, sixteen".

Divisors: 1 2 4 8 16699 33398 66796 92723 133592 185446 370892 741784 1548381377 3096762754 6193525508 12387051016