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19031073708 = 2231793289577
BaseRepresentation
bin10001101110010101…
…110010001110101100
31211010022022201020210
4101232111302032230
5302433423324313
612424233542420
71242415312623
oct215625621654
954108281223
1019031073708
1180865aa399
123831574a10
131a43a2a37a
14cc77466ba
15765b769c3
hex46e5723ac

19031073708 has 24 divisors (see below), whose sum is σ = 47017947312. Its totient is φ = 5970532864.

The previous prime is 19031073643. The next prime is 19031073781. The reversal of 19031073708 is 80737013091.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46644585 + ... + 46644992.

It is an arithmetic number, because the mean of its divisors is an integer number (1959081138).

Almost surely, 219031073708 is an apocalyptic number.

It is an amenable number.

19031073708 is an abundant number, since it is smaller than the sum of its proper divisors (27986873604).

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

19031073708 is a wasteful number, since it uses less digits than its factorization.

19031073708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93289601 (or 93289599 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 39.

Adding to 19031073708 its reverse (80737013091), we get a palindrome (99768086799).

The spelling of 19031073708 in words is "nineteen billion, thirty-one million, seventy-three thousand, seven hundred eight".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 204 93289577 186579154 279868731 373158308 559737462 1119474924 1585922809 3171845618 4757768427 6343691236 9515536854 19031073708