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19064827388 = 2213734789831
BaseRepresentation
bin10001110000010110…
…100010110111111100
31211012122211120121002
4101300112202313330
5303021043434023
612431441225432
71243305234065
oct216026426774
954178746532
1019064827388
1180a3663aa2
123840932278
131a4aa17a69
14ccc01156c
15768ae2b28
hex4705a2dfc

19064827388 has 12 divisors (see below), whose sum is σ = 33606977712. Its totient is φ = 9462833760.

The previous prime is 19064827363. The next prime is 19064827427. The reversal of 19064827388 is 88372846091.

It is a hoax number, since the sum of its digits (56) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 17394368 + ... + 17395463.

It is an arithmetic number, because the mean of its divisors is an integer number (2800581476).

Almost surely, 219064827388 is an apocalyptic number.

It is an amenable number.

19064827388 is a deficient number, since it is larger than the sum of its proper divisors (14542150324).

19064827388 is a wasteful number, since it uses less digits than its factorization.

19064827388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34789972 (or 34789970 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 56.

The spelling of 19064827388 in words is "nineteen billion, sixty-four million, eight hundred twenty-seven thousand, three hundred eighty-eight".

Divisors: 1 2 4 137 274 548 34789831 69579662 139159324 4766206847 9532413694 19064827388