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19100928291020 = 2255741166355411
BaseRepresentation
bin1000101011111010010000…
…00010111011000011001100
32111122000211112102111022022
410111331020002323003030
510000422200120303040
6104342502331105312
74010665544420102
oct425751002730314
974560745374268
1019100928291020
1160a4727073004
122185a7a2a2238
13a87295c48474
144a06c0277c72
15231cd40c36b5
hex115f480bb0cc

19100928291020 has 24 divisors (see below), whose sum is σ = 40118936579568. Its totient is φ = 7639040427200.

The previous prime is 19100928291019. The next prime is 19100928291037. The reversal of 19100928291020 is 2019282900191.

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, 83062886 + ... + 83292525.

It is an arithmetic number, because the mean of its divisors is an integer number (1671622357482).

Almost surely, 219100928291020 is an apocalyptic number.

19100928291020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19100928291020 is an abundant number, since it is smaller than the sum of its proper divisors (21018008288548).

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

19100928291020 is a wasteful number, since it uses less digits than its factorization.

19100928291020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166361161 (or 166361159 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 44.

The spelling of 19100928291020 in words is "nineteen trillion, one hundred billion, nine hundred twenty-eight million, two hundred ninety-one thousand, twenty".

Divisors: 1 2 4 5 10 20 5741 11482 22964 28705 57410 114820 166355411 332710822 665421644 831777055 1663554110 3327108220 955046414551 1910092829102 3820185658204 4775232072755 9550464145510 19100928291020