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190919092 = 22721374929
BaseRepresentation
bin10110110000100…
…11000110110100
3111022020200202111
423120103012310
5342333402332
630540020404
74505533300
oct1330230664
9438220674
10190919092
1198850381
1253b31704
1330727ba0
141b4dad00
1511b63947
hexb6131b4

190919092 has 36 divisors (see below), whose sum is σ = 418558980. Its totient is φ = 75527424.

The previous prime is 190919089. The next prime is 190919101. The reversal of 190919092 is 290919091.

190919092 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 118940836 + 71978256 = 10906^2 + 8484^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34917 + ... + 40012.

Almost surely, 2190919092 is an apocalyptic number.

It is an amenable number.

190919092 is an abundant number, since it is smaller than the sum of its proper divisors (227639888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

190919092 is a wasteful number, since it uses less digits than its factorization.

190919092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74960 (or 74951 counting only the distinct ones).

The product of its (nonzero) digits is 13122, while the sum is 40.

The square root of 190919092 is about 13817.3475023247. The cubic root of 190919092 is about 575.8151935736.

Subtracting 190919092 from its reverse (290919091), we obtain a palindrome (99999999).

The spelling of 190919092 in words is "one hundred ninety million, nine hundred nineteen thousand, ninety-two".

Divisors: 1 2 4 7 13 14 26 28 49 52 91 98 182 196 364 637 1274 2548 74929 149858 299716 524503 974077 1049006 1948154 2098012 3671521 3896308 6818539 7343042 13637078 14686084 27274156 47729773 95459546 190919092