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12650869870 = 259411344407
BaseRepresentation
bin10111100100000110…
…01111010001101110
31012122122211202221221
423302003033101232
5201402110313440
65451200013554
7625333422352
oct136203172156
935578752857
1012650869870
1154020a4861
1225509012ba
131267c61722
14880247462
154e098ad4a
hex2f20cf46e

12650869870 has 16 divisors (see below), whose sum is σ = 22795782048. Its totient is φ = 5054966560.

The previous prime is 12650869843. The next prime is 12650869871. The reversal of 12650869870 is 7896805621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12650869871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 662794 + ... + 681613.

It is an arithmetic number, because the mean of its divisors is an integer number (1424736378).

Almost surely, 212650869870 is an apocalyptic number.

12650869870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12650869870 is a deficient number, since it is larger than the sum of its proper divisors (10144912178).

12650869870 is a wasteful number, since it uses less digits than its factorization.

12650869870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1345355.

The product of its (nonzero) digits is 1451520, while the sum is 52.

The spelling of 12650869870 in words is "twelve billion, six hundred fifty million, eight hundred sixty-nine thousand, eight hundred seventy".

Divisors: 1 2 5 10 941 1882 4705 9410 1344407 2688814 6722035 13444070 1265086987 2530173974 6325434935 12650869870