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139117601280 = 2935722316073
BaseRepresentation
bin1000000110010000001…
…1100010001000000000
3111022002100022101021010
42001210003202020000
54234403101220110
6143524301000520
713023315046200
oct2014403421000
9438070271233
10139117601280
1153aaa2939a9
1222b66253140
1310170b1bc88
146a3a374400
153943520020
hex20640e2200

139117601280 has 480 divisors, whose sum is σ = 539879624064. Its totient is φ = 30413881344.

The previous prime is 139117601243. The next prime is 139117601309. The reversal of 139117601280 is 82106711931.

It is a tau number, because it is divible by the number of its divisors (480).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8647324 + ... + 8663396.

Almost surely, 2139117601280 is an apocalyptic number.

139117601280 is a gapful number since it is divisible by the number (10) 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 139117601280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269939812032).

139117601280 is an abundant number, since it is smaller than the sum of its proper divisors (400762022784).

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

139117601280 is a wasteful number, since it uses less digits than its factorization.

139117601280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16136 (or 16113 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 39.

The spelling of 139117601280 in words is "one hundred thirty-nine billion, one hundred seventeen million, six hundred one thousand, two hundred eighty".