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190834631 = 1322294931
BaseRepresentation
bin10110101111111…
…10011111000111
3111022002101220022
423113332133013
5342323202011
630534125355
74505032121
oct1327763707
9438071808
10190834631
11987a2979
1253ab085b
13306c8600
141b4b8211
1511b488db
hexb5fe7c7

190834631 has 12 divisors (see below), whose sum is σ = 207587880. Its totient is φ = 175350240.

The previous prime is 190834627. The next prime is 190834661. The reversal of 190834631 is 136438091.

It is not a de Polignac number, because 190834631 - 22 = 190834627 is a prime.

It is a super-2 number, since 2×1908346312 = 72835712777812322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 190834591 and 190834600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190834621) 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, 36236 + ... + 41166.

It is an arithmetic number, because the mean of its divisors is an integer number (17298990).

Almost surely, 2190834631 is an apocalyptic number.

190834631 is a deficient number, since it is larger than the sum of its proper divisors (16753249).

190834631 is a wasteful number, since it uses less digits than its factorization.

190834631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5186 (or 5173 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 190834631 is about 13814.2908250840. The cubic root of 190834631 is about 575.7302691167.

The spelling of 190834631 in words is "one hundred ninety million, eight hundred thirty-four thousand, six hundred thirty-one".

Divisors: 1 13 169 229 2977 4931 38701 64103 833339 1129199 14679587 190834631