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190499408913 = 31131186216431
BaseRepresentation
bin1011000101101010100…
…1100100110000010001
3200012201020020122121110
42301122221210300101
511110120322041123
6223303023243533
716522516154502
oct2613251446021
9605636218543
10190499408913
1173876a4a530
1230b05a495a9
1314c6bc3aa48
1493123dcba9
154e4e364493
hex2c5aa64c11

190499408913 has 16 divisors (see below), whose sum is σ = 286028439552. Its totient is φ = 111729858000.

The previous prime is 190499408899. The next prime is 190499408929. The reversal of 190499408913 is 319804994091.

It is not a de Polignac number, because 190499408913 - 25 = 190499408881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (190499408993) 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, 93107193 + ... + 93109238.

It is an arithmetic number, because the mean of its divisors is an integer number (17876777472).

Almost surely, 2190499408913 is an apocalyptic number.

It is an amenable number.

190499408913 is a deficient number, since it is larger than the sum of its proper divisors (95529030639).

190499408913 is a wasteful number, since it uses less digits than its factorization.

190499408913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186216476.

The product of its (nonzero) digits is 2519424, while the sum is 57.

The spelling of 190499408913 in words is "one hundred ninety billion, four hundred ninety-nine million, four hundred eight thousand, nine hundred thirteen".

Divisors: 1 3 11 31 33 93 341 1023 186216431 558649293 2048380741 5772709361 6145142223 17318128083 63499802971 190499408913