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19108630680 = 2335433703223
BaseRepresentation
bin10001110010111101…
…101001000010011000
31211022201021000102020
4101302331221002120
5303113302140210
612440044134440
71244346452346
oct216275510230
954281230366
1019108630680
118116362067
123853537420
131a56b13779
14cd3b74996
1576c896770
hex472f69098

19108630680 has 64 divisors (see below), whose sum is σ = 58659068160. Its totient is φ = 4977130368.

The previous prime is 19108630633. The next prime is 19108630769. The reversal of 19108630680 is 8603680191.

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, 1846452 + ... + 1856771.

It is an arithmetic number, because the mean of its divisors is an integer number (916547940).

Almost surely, 219108630680 is an apocalyptic number.

19108630680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19108630680 is an abundant number, since it is smaller than the sum of its proper divisors (39550437480).

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

19108630680 is a wasteful number, since it uses less digits than its factorization.

19108630680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3703280 (or 3703276 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 42.

The spelling of 19108630680 in words is "nineteen billion, one hundred eight million, six hundred thirty thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 43 60 86 120 129 172 215 258 344 430 516 645 860 1032 1290 1720 2580 5160 3703223 7406446 11109669 14812892 18516115 22219338 29625784 37032230 44438676 55548345 74064460 88877352 111096690 148128920 159238589 222193380 318477178 444386760 477715767 636954356 796192945 955431534 1273908712 1592385890 1910863068 2388578835 3184771780 3821726136 4777157670 6369543560 9554315340 19108630680