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12834650157 = 3717199719507
BaseRepresentation
bin10111111010000000…
…10011100000101101
31020010110122210010020
423331000103200231
5202241132301112
65521323032353
7633024504060
oct137500234055
936113583106
1012834650157
11549690969a
1225a236b6b9
13129705a164
1489a8068d7
15501b8e48c
hex2fd01382d

12834650157 has 64 divisors (see below), whose sum is σ = 22023751680. Its totient is φ = 6471622656.

The previous prime is 12834650131. The next prime is 12834650167. The reversal of 12834650157 is 75105643821.

It is a happy number.

It is not a de Polignac number, because 12834650157 - 26 = 12834650093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12834650167) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 648198 + ... + 667704.

It is an arithmetic number, because the mean of its divisors is an integer number (344121120).

Almost surely, 212834650157 is an apocalyptic number.

12834650157 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

12834650157 is a deficient number, since it is larger than the sum of its proper divisors (9189101523).

12834650157 is a wasteful number, since it uses less digits than its factorization.

12834650157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19650.

The product of its (nonzero) digits is 201600, while the sum is 42.

It can be divided in two parts, 128346 and 50157, that added together give a triangular number (178503 = T597).

The spelling of 12834650157 in words is "twelve billion, eight hundred thirty-four million, six hundred fifty thousand, one hundred fifty-seven".

Divisors: 1 3 7 17 19 21 51 57 97 119 133 291 323 357 399 679 969 1649 1843 2037 2261 4947 5529 6783 11543 12901 19507 31331 34629 38703 58521 93993 136549 219317 331619 370633 409647 657951 994857 1111899 1892179 2321333 2594431 5676537 6300761 6963999 7783293 13245253 18902283 32167043 35951401 39735759 44105327 96501129 107854203 132315981 225169301 251659807 611173817 675507903 754979421 1833521451 4278216719 12834650157