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190898613 = 35785591
BaseRepresentation
bin10110110000011…
…10000110110101
3111022012122200000
423120032012311
5342332223423
630535341513
74505416503
oct1330160665
9438178600
10190898613
1198836a54
1253b21899
133071b779
141b4d3673
1511b5c843
hexb60e1b5

190898613 has 12 divisors (see below), whose sum is σ = 285955488. Its totient is φ = 127265580.

The previous prime is 190898599. The next prime is 190898639. The reversal of 190898613 is 316898091.

190898613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 190898613 - 26 = 190898549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190898693) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 392553 + ... + 393038.

It is an arithmetic number, because the mean of its divisors is an integer number (23829624).

Almost surely, 2190898613 is an apocalyptic number.

It is an amenable number.

190898613 is a deficient number, since it is larger than the sum of its proper divisors (95056875).

190898613 is an frugal number, since it uses more digits than its factorization.

190898613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785606 (or 785594 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 45.

The square root of 190898613 is about 13816.6064212599. The cubic root of 190898613 is about 575.7946045012.

The spelling of 190898613 in words is "one hundred ninety million, eight hundred ninety-eight thousand, six hundred thirteen".

Divisors: 1 3 9 27 81 243 785591 2356773 7070319 21210957 63632871 190898613