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139030260887 = 7243922672851
BaseRepresentation
bin1000000101111011011…
…0010110110010010111
3111021212020222000202202
42001132312112302113
54234213221322022
6143511500555115
713021204501400
oct2013666266227
9437766860682
10139030260887
1153a64a59861
1222b40b52a9b
13101589bb77b
146a2c91a9a7
15393aa1b592
hex205ed96c97

139030260887 has 24 divisors (see below), whose sum is σ = 162225866880. Its totient is φ = 118803207600.

The previous prime is 139030260877. The next prime is 139030260899. The reversal of 139030260887 is 788062030931.

It is not a de Polignac number, because 139030260887 - 28 = 139030260631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139030260877) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48764012 + ... + 48766862.

It is an arithmetic number, because the mean of its divisors is an integer number (6759411120).

Almost surely, 2139030260887 is an apocalyptic number.

139030260887 is a deficient number, since it is larger than the sum of its proper divisors (23195605993).

139030260887 is a wasteful number, since it uses less digits than its factorization.

139030260887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5571 (or 5564 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 47.

The spelling of 139030260887 in words is "one hundred thirty-nine billion, thirty million, two hundred sixty thousand, eight hundred eighty-seven".

Divisors: 1 7 49 439 2267 2851 3073 15869 19957 21511 111083 139699 995213 1251589 6463217 6966491 8761123 45242519 48765437 61327861 316697633 2837352263 19861465841 139030260887