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139297511430 = 2335711194359139
BaseRepresentation
bin1000000110111011000…
…1110101100000000110
3111022112212211202121000
42001232301311200012
54240240130331210
6143554205034130
713030631211450
oct2015661654006
9438485752530
10139297511430
11540918a5080
1222bb6555946
131019c190c9c
146a562072d0
15395420bac0
hex206ec75806

139297511430 has 1024 divisors, whose sum is σ = 510935040000. Its totient is φ = 26140423680.

The previous prime is 139297511417. The next prime is 139297511447. The reversal of 139297511430 is 34115792931.

139297511430 is a `hidden beast` number, since 1 + 3 + 9 + 2 + 97 + 511 + 43 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 511 ways as a sum of consecutive naturals, for example, 1002140301 + ... + 1002140439.

It is an arithmetic number, because the mean of its divisors is an integer number (498960000).

Almost surely, 2139297511430 is an apocalyptic number.

139297511430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 139297511430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (255467520000).

139297511430 is an abundant number, since it is smaller than the sum of its proper divisors (371637528570).

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

139297511430 is a wasteful number, since it uses less digits than its factorization.

139297511430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294 (or 288 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The spelling of 139297511430 in words is "one hundred thirty-nine billion, two hundred ninety-seven million, five hundred eleven thousand, four hundred thirty".