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19269426680 = 2357232992147
BaseRepresentation
bin10001111100100011…
…000001110111111000
31211201220211022001122
4101330203001313320
5303430433123210
612504030404412
71251341265350
oct217443016770
954656738048
1019269426680
1181990a8519
123899360708
131a8122262a
14d0b26db60
1577ba59b55
hex47c8c1df8

19269426680 has 64 divisors (see below), whose sum is σ = 51704317440. Its totient is φ = 6319412352.

The previous prime is 19269426653. The next prime is 19269426719. The reversal of 19269426680 is 8662496291.

It is a hoax number, since the sum of its digits (53) 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 15 ways as a sum of consecutive naturals, for example, 1489634 + ... + 1502513.

It is an arithmetic number, because the mean of its divisors is an integer number (807879960).

Almost surely, 219269426680 is an apocalyptic number.

19269426680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19269426680 is an abundant number, since it is smaller than the sum of its proper divisors (32434890760).

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

19269426680 is a wasteful number, since it uses less digits than its factorization.

19269426680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2992188 (or 2992184 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 53.

The spelling of 19269426680 in words is "nineteen billion, two hundred sixty-nine million, four hundred twenty-six thousand, six hundred eighty".

Divisors: 1 2 4 5 7 8 10 14 20 23 28 35 40 46 56 70 92 115 140 161 184 230 280 322 460 644 805 920 1288 1610 3220 6440 2992147 5984294 11968588 14960735 20945029 23937176 29921470 41890058 59842940 68819381 83780116 104725145 119685880 137638762 167560232 209450290 275277524 344096905 418900580 481735667 550555048 688193810 837801160 963471334 1376387620 1926942668 2408678335 2752775240 3853885336 4817356670 9634713340 19269426680