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14639494380 = 2235734855939
BaseRepresentation
bin11011010001001010…
…01111010011101100
31101210020210100221120
431220211033103230
5214440202310010
610420355100540
71025531435430
oct155045172354
941706710846
1014639494380
116232681895
122a068a1750
1314c3c55114
149cc3c09c0
155aa352e70
hex36894f4ec

14639494380 has 48 divisors (see below), whose sum is σ = 46846383360. Its totient is φ = 3346170048.

The previous prime is 14639494327. The next prime is 14639494417. The reversal of 14639494380 is 8349493641.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17427550 + ... + 17428389.

It is an arithmetic number, because the mean of its divisors is an integer number (975966320).

Almost surely, 214639494380 is an apocalyptic number.

14639494380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14639494380 is an abundant number, since it is smaller than the sum of its proper divisors (32206888980).

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

14639494380 is a wasteful number, since it uses less digits than its factorization.

14639494380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34855958 (or 34855956 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 51.

The spelling of 14639494380 in words is "fourteen billion, six hundred thirty-nine million, four hundred ninety-four thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 420 34855939 69711878 104567817 139423756 174279695 209135634 243991573 348559390 418271268 487983146 522839085 697118780 731974719 975966292 1045678170 1219957865 1463949438 2091356340 2439915730 2927898876 3659873595 4879831460 7319747190 14639494380