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19319202868482 = 233111729227290623
BaseRepresentation
bin1000110010010000110100…
…01110010110110100000010
32112101220020110112220022000
410121020122032112310002
510013011211413242412
6105031041432524430
74032523566623436
oct431103216266402
975356213486260
1019319202868482
116179256406790
122200235b50716
13aa1a4033438a
144ab0a941c9c6
1523780ba8c4dc
hex11921a396d02

19319202868482 has 256 divisors, whose sum is σ = 51525542707200. Its totient is φ = 5296481326080.

The previous prime is 19319202868409. The next prime is 19319202868517. The reversal of 19319202868482 is 28486820291391.

19319202868482 is a `hidden beast` number, since 1 + 9 + 3 + 1 + 92 + 0 + 2 + 8 + 68 + 482 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 66329823 + ... + 66620445.

It is an arithmetic number, because the mean of its divisors is an integer number (201271651200).

Almost surely, 219319202868482 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19319202868482, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25762771353600).

19319202868482 is an abundant number, since it is smaller than the sum of its proper divisors (32206339838718).

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

19319202868482 is a wasteful number, since it uses less digits than its factorization.

19319202868482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290918 (or 290912 counting only the distinct ones).

The product of its (nonzero) digits is 23887872, while the sum is 63.

The spelling of 19319202868482 in words is "nineteen trillion, three hundred nineteen billion, two hundred two million, eight hundred sixty-eight thousand, four hundred eighty-two".