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19074095880 = 23357176771973
BaseRepresentation
bin10001110000111001…
…111001101100001000
31211020022021110120120
4101300321321230020
5303030432032010
612432412023240
71243450065660
oct216071715410
954208243516
1019074095880
1180a8914604
123843a61b20
131a4c911688
14ccd3451a0
15769823e70
hex470e79b08

19074095880 has 256 divisors, whose sum is σ = 69381204480. Its totient is φ = 4095197184.

The previous prime is 19074095879. The next prime is 19074095939. The reversal of 19074095880 is 8859047091.

It is a Cunningham number, because it is equal to 1381092-1.

It is a super-2 number, since 2×190740958802 (a number of 21 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9666574 + ... + 9668546.

It is an arithmetic number, because the mean of its divisors is an integer number (271020330).

Almost surely, 219074095880 is an apocalyptic number.

19074095880 is a gapful number since it is divisible by the number (10) 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 19074095880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34690602240).

19074095880 is an abundant number, since it is smaller than the sum of its proper divisors (50307108600).

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

19074095880 is a wasteful number, since it uses less digits than its factorization.

19074095880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2688 (or 2684 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 51.

The spelling of 19074095880 in words is "nineteen billion, seventy-four million, ninety-five thousand, eight hundred eighty".