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13919642274 = 2323103979291
BaseRepresentation
bin11001111011010110…
…01110001010100010
31022221002021002111110
430331223032022202
5212001412023044
610221122124150
71001641002306
oct147553161242
938832232443
1013919642274
1159a330329a
1228457b0656
13140aa84a25
14960959d06
1556705d6b9
hex33dace2a2

13919642274 has 32 divisors (see below), whose sum is σ = 29331753984. Its totient is φ = 4395053520.

The previous prime is 13919642267. The next prime is 13919642293. The reversal of 13919642274 is 47224691931.

It is a super-2 number, since 2×139196422742 (a number of 21 digits) contains 22 as substring.

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, 475432 + ... + 503859.

It is an arithmetic number, because the mean of its divisors is an integer number (916617312).

Almost surely, 213919642274 is an apocalyptic number.

13919642274 is an abundant number, since it is smaller than the sum of its proper divisors (15412111710).

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

13919642274 is a wasteful number, since it uses less digits than its factorization.

13919642274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 979422.

The product of its digits is 653184, while the sum is 48.

The spelling of 13919642274 in words is "thirteen billion, nine hundred nineteen million, six hundred forty-two thousand, two hundred seventy-four".

Divisors: 1 2 3 6 23 46 69 103 138 206 309 618 2369 4738 7107 14214 979291 1958582 2937873 5875746 22523693 45047386 67571079 100866973 135142158 201733946 302600919 605201838 2319940379 4639880758 6959821137 13919642274