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19995182304 = 2531910962271
BaseRepresentation
bin10010100111110011…
…100100010011100000
31220121111110111121120
4102213303210103200
5311422231313204
613104034052240
71305333150066
oct224763442340
956544414546
1019995182304
118530839459
123a6041a080
131b686abb26
14d797d0036
157c06186d9
hex4a7ce44e0

19995182304 has 48 divisors (see below), whose sum is σ = 55249850880. Its totient is φ = 6314267520.

The previous prime is 19995182287. The next prime is 19995182329. The reversal of 19995182304 is 40328159991.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 5479312 + ... + 5482959.

It is an arithmetic number, because the mean of its divisors is an integer number (1151038560).

Almost surely, 219995182304 is an apocalyptic number.

It is an amenable number.

19995182304 is an abundant number, since it is smaller than the sum of its proper divisors (35254668576).

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

19995182304 is a wasteful number, since it uses less digits than its factorization.

19995182304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10962303 (or 10962295 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 51.

The spelling of 19995182304 in words is "nineteen billion, nine hundred ninety-five million, one hundred eighty-two thousand, three hundred four".

Divisors: 1 2 3 4 6 8 12 16 19 24 32 38 48 57 76 96 114 152 228 304 456 608 912 1824 10962271 21924542 32886813 43849084 65773626 87698168 131547252 175396336 208283149 263094504 350792672 416566298 526189008 624849447 833132596 1052378016 1249698894 1666265192 2499397788 3332530384 4998795576 6665060768 9997591152 19995182304