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9139292 = 222978787
BaseRepresentation
bin100010110111…
…010001011100
3122012022202022
4202313101130
54314424132
6523515312
7140453111
oct42672134
918168668
109139292
115182538
123088b38
131b7cb86
1412dc908
15c07e12
hex8b745c

9139292 has 12 divisors (see below), whose sum is σ = 16545480. Its totient is φ = 4412016.

The previous prime is 9139289. The next prime is 9139297. The reversal of 9139292 is 2929319.

9139292 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×91392922 = 167053316522528, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9139297) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39278 + ... + 39509.

It is an arithmetic number, because the mean of its divisors is an integer number (1378790).

Almost surely, 29139292 is an apocalyptic number.

It is an amenable number.

9139292 is a deficient number, since it is larger than the sum of its proper divisors (7406188).

9139292 is a wasteful number, since it uses less digits than its factorization.

9139292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78820 (or 78818 counting only the distinct ones).

The product of its digits is 8748, while the sum is 35.

The square root of 9139292 is about 3023.1261965059. The cubic root of 9139292 is about 209.0760008389.

The spelling of 9139292 in words is "nine million, one hundred thirty-nine thousand, two hundred ninety-two".

Divisors: 1 2 4 29 58 116 78787 157574 315148 2284823 4569646 9139292