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139959836680 = 2353498995917
BaseRepresentation
bin1000001001011001000…
…0011010000000001000
3111101021001010101000211
42002112100122000020
54243114204233210
6144144025010504
713053222661036
oct2022620320010
9441231111024
10139959836680
11543a1751914
1223160323a34
131027646c011
146aba175556
15399243b38a
hex209641a008

139959836680 has 16 divisors (see below), whose sum is σ = 314909632620. Its totient is φ = 55983934656.

The previous prime is 139959836677. The next prime is 139959836713. The reversal of 139959836680 is 86638959931.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 116372405956 + 23587430724 = 341134^2 + 153582^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1749497919 + ... + 1749497998.

Almost surely, 2139959836680 is an apocalyptic number.

139959836680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139959836680 is an abundant number, since it is smaller than the sum of its proper divisors (174949795940).

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

139959836680 is a wasteful number, since it uses less digits than its factorization.

139959836680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3498995928 (or 3498995924 counting only the distinct ones).

The product of its (nonzero) digits is 75582720, while the sum is 67.

The spelling of 139959836680 in words is "one hundred thirty-nine billion, nine hundred fifty-nine million, eight hundred thirty-six thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 3498995917 6997991834 13995983668 17494979585 27991967336 34989959170 69979918340 139959836680