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19899485153 = 163491248641
BaseRepresentation
bin10010100010000110…
…100000101111100001
31220100211101120210122
4102202012200233201
5311223232011103
613050335010025
71303061555462
oct224206405741
956324346718
1019899485153
1184918167a9
123a34369915
131b519139b2
14d6abdcd69
157b7013b38
hex4a21a0be1

19899485153 has 8 divisors (see below), whose sum is σ = 20062425696. Its totient is φ = 19737043200.

The previous prime is 19899485119. The next prime is 19899485173. The reversal of 19899485153 is 35158499891.

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

It is a cyclic number.

It is not a de Polignac number, because 19899485153 - 214 = 19899468769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19899485173) 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, 44288 + ... + 204353.

It is an arithmetic number, because the mean of its divisors is an integer number (2507803212).

Almost surely, 219899485153 is an apocalyptic number.

It is an amenable number.

19899485153 is a deficient number, since it is larger than the sum of its proper divisors (162940543).

19899485153 is a wasteful number, since it uses less digits than its factorization.

19899485153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249295.

The product of its digits is 13996800, while the sum is 62.

The spelling of 19899485153 in words is "nineteen billion, eight hundred ninety-nine million, four hundred eighty-five thousand, one hundred fifty-three".

Divisors: 1 163 491 80033 248641 40528483 122082731 19899485153