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19192728201 = 310362112389
BaseRepresentation
bin10001110111111110…
…011100101010001001
31211112120111121112020
4101313332130222021
5303301314300301
612452250435053
71246420332543
oct216776345211
954476447466
1019192728201
118159881849
123877732a89
131a6b379c0a
14d00dc6693
15774e59436
hex477f9ca89

19192728201 has 8 divisors (see below), whose sum is σ = 25838754240. Its totient is φ = 12670927152.

The previous prime is 19192728199. The next prime is 19192728209. The reversal of 19192728201 is 10282729191.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 19192728201 - 21 = 19192728199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19192728209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31055886 + ... + 31056503.

It is an arithmetic number, because the mean of its divisors is an integer number (3229844280).

Almost surely, 219192728201 is an apocalyptic number.

It is an amenable number.

19192728201 is a deficient number, since it is larger than the sum of its proper divisors (6646026039).

19192728201 is a wasteful number, since it uses less digits than its factorization.

19192728201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62112495.

The product of its (nonzero) digits is 36288, while the sum is 42.

The spelling of 19192728201 in words is "nineteen billion, one hundred ninety-two million, seven hundred twenty-eight thousand, two hundred one".

Divisors: 1 3 103 309 62112389 186337167 6397576067 19192728201