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13129254684 = 22347134110861
BaseRepresentation
bin11000011101001000…
…01000011100011100
31020220000000020120000
430032210020130130
5203342042122214
610010445254300
7643232552310
oct141644103434
936800006500
1013129254684
115628138407
122664b64390
1313130b9170
148c79b3b40
1551c984809
hex30e90871c

13129254684 has 240 divisors, whose sum is σ = 43277336256. Its totient is φ = 3377894400.

The previous prime is 13129254641. The next prime is 13129254731. The reversal of 13129254684 is 48645292131.

13129254684 is a `hidden beast` number, since 1 + 3 + 1 + 29 + 2 + 546 + 84 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1203414 + ... + 1214274.

Almost surely, 213129254684 is an apocalyptic number.

13129254684 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13129254684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21638668128).

13129254684 is an abundant number, since it is smaller than the sum of its proper divisors (30148081572).

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

13129254684 is a wasteful number, since it uses less digits than its factorization.

13129254684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10938 (or 10927 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The spelling of 13129254684 in words is "thirteen billion, one hundred twenty-nine million, two hundred fifty-four thousand, six hundred eighty-four".