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19204026084672 = 263111317210722619
BaseRepresentation
bin1000101110111010010010…
…01001110010110101000000
32111222212221121010001120020
410113131021021302311000
510004114321134202142
6104502112514413440
74021305445254012
oct427351111626500
974885847101506
1019204026084672
116134422093350
1221a1a51591280
13a93c1648c8b0
144a56a08ba1b2
1523481a26ccec
hex117749272d40

19204026084672 has 672 divisors, whose sum is σ = 64007037319680. Its totient is φ = 5008298311680.

The previous prime is 19204026084653. The next prime is 19204026084731. The reversal of 19204026084672 is 27648062040291.

It is a super-2 number, since 2×192040260846722 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 849010579 + ... + 849033197.

It is an arithmetic number, because the mean of its divisors is an integer number (95248567440).

Almost surely, 219204026084672 is an apocalyptic number.

19204026084672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19204026084672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32003518659840).

19204026084672 is an abundant number, since it is smaller than the sum of its proper divisors (44803011235008).

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

19204026084672 is a wasteful number, since it uses less digits than its factorization.

19204026084672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22799 (or 22772 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 51.

The spelling of 19204026084672 in words is "nineteen trillion, two hundred four billion, twenty-six million, eighty-four thousand, six hundred seventy-two".