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23191196 = 2271783587
BaseRepresentation
bin101100001110…
…1111010011100
31121122020100012
41120131322130
521414104241
62145022352
7401056550
oct130357234
947566305
1023191196
11120aa986
1279249b8
134a5cb02
143119860
1520816eb
hex161de9c

23191196 has 48 divisors (see below), whose sum is σ = 49787136. Its totient is φ = 9225984.

The previous prime is 23191187. The next prime is 23191219. The reversal of 23191196 is 69119132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39215 + ... + 39801.

It is an arithmetic number, because the mean of its divisors is an integer number (1037232).

Almost surely, 223191196 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23191196, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24893568).

23191196 is an abundant number, since it is smaller than the sum of its proper divisors (26595940).

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

23191196 is a wasteful number, since it uses less digits than its factorization.

23191196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698 (or 696 counting only the distinct ones).

The product of its digits is 2916, while the sum is 32.

The square root of 23191196 is about 4815.7238292909. The cubic root of 23191196 is about 285.1725476115.

The spelling of 23191196 in words is "twenty-three million, one hundred ninety-one thousand, one hundred ninety-six".

Divisors: 1 2 4 7 14 17 28 34 68 83 119 166 238 332 476 581 587 1162 1174 1411 2324 2348 2822 4109 5644 8218 9877 9979 16436 19754 19958 39508 39916 48721 69853 97442 139706 194884 279412 341047 682094 828257 1364188 1656514 3313028 5797799 11595598 23191196