Search a number
-
+
19610490995 = 519988320887
BaseRepresentation
bin10010010000111000…
…000101100001110011
31212121200121011100022
4102100320011201303
5310130241202440
613001532514055
71262652265064
oct222070054163
955550534308
1019610490995
11835367a157
12397361b92b
131b06a9a534
14d4069256b
1579b97acb5
hex490e05873

19610490995 has 16 divisors (see below), whose sum is σ = 24774839040. Its totient is φ = 14860472544.

The previous prime is 19610490923. The next prime is 19610490997. The reversal of 19610490995 is 59909401691.

It is a cyclic number.

It is not a de Polignac number, because 19610490995 - 212 = 19610486899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19610490997) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 928442 + ... + 949328.

It is an arithmetic number, because the mean of its divisors is an integer number (1548427440).

Almost surely, 219610490995 is an apocalyptic number.

19610490995 is a deficient number, since it is larger than the sum of its proper divisors (5164348045).

19610490995 is a wasteful number, since it uses less digits than its factorization.

19610490995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30794.

The product of its (nonzero) digits is 787320, while the sum is 53.

The spelling of 19610490995 in words is "nineteen billion, six hundred ten million, four hundred ninety thousand, nine hundred ninety-five".

Divisors: 1 5 19 95 9883 20887 49415 104435 187777 396853 938885 1984265 206426221 1032131105 3922098199 19610490995