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19493585241 = 3131513310169
BaseRepresentation
bin10010001001111010…
…001000000101011001
31212022112121201210120
4102021322020011121
5304410324211431
612542155103453
71260032512014
oct221172100531
955275551716
1019493585241
1182a3691129
123940441b89
131ab87b7b30
14d2cd4037b
15791587196
hex489e88159

19493585241 has 16 divisors (see below), whose sum is σ = 28176167040. Its totient is φ = 11916604800.

The previous prime is 19493585239. The next prime is 19493585257. The reversal of 19493585241 is 14258539491.

It is not a de Polignac number, because 19493585241 - 21 = 19493585239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19493585201) 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, 1649196 + ... + 1660973.

It is an arithmetic number, because the mean of its divisors is an integer number (1761010440).

Almost surely, 219493585241 is an apocalyptic number.

It is an amenable number.

19493585241 is a deficient number, since it is larger than the sum of its proper divisors (8682581799).

19493585241 is a wasteful number, since it uses less digits than its factorization.

19493585241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3310336.

The product of its digits is 1555200, while the sum is 51.

The spelling of 19493585241 in words is "nineteen billion, four hundred ninety-three million, five hundred eighty-five thousand, two hundred forty-one".

Divisors: 1 3 13 39 151 453 1963 5889 3310169 9930507 43032197 129096591 499835519 1499506557 6497861747 19493585241