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16497379380 = 22351979138937
BaseRepresentation
bin11110101110101001…
…00000100000110100
31120120201201201001010
433113110200200310
5232241312120010
611325004032220
71122551260656
oct172724404064
946521651033
1016497379380
116aa6382339
123244b32670
13172bb31561
14b270446d6
156684e2620
hex3d7520834

16497379380 has 48 divisors (see below), whose sum is σ = 46216336320. Its totient is φ = 4397046528.

The previous prime is 16497379363. The next prime is 16497379417. The reversal of 16497379380 is 8397379461.

It is a self number, because there is not a number n which added to its sum of digits gives 16497379380.

It is a congruent 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, 49272 + ... + 188208.

It is an arithmetic number, because the mean of its divisors is an integer number (962840340).

Almost surely, 216497379380 is an apocalyptic number.

16497379380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16497379380 is an abundant number, since it is smaller than the sum of its proper divisors (29718956940).

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

16497379380 is a wasteful number, since it uses less digits than its factorization.

16497379380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140928 (or 140926 counting only the distinct ones).

The product of its (nonzero) digits is 6858432, while the sum is 57.

The spelling of 16497379380 in words is "sixteen billion, four hundred ninety-seven million, three hundred seventy-nine thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 1979 3958 5937 7916 9895 11874 19790 23748 29685 39580 59370 118740 138937 277874 416811 555748 694685 833622 1389370 1667244 2084055 2778740 4168110 8336220 274956323 549912646 824868969 1099825292 1374781615 1649737938 2749563230 3299475876 4124344845 5499126460 8248689690 16497379380