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12422388 = 2231194109
BaseRepresentation
bin101111011000…
…110011110100
3212101010022110
4233120303310
511140004023
61122131020
7210405606
oct57306364
925333273
1012422388
117015140
1241b0a70
13275c334
141915176
151155a93
hexbd8cf4

12422388 has 24 divisors (see below), whose sum is σ = 31620960. Its totient is φ = 3764320.

The previous prime is 12422363. The next prime is 12422401. The reversal of 12422388 is 88322421.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46923 + ... + 47186.

It is an arithmetic number, because the mean of its divisors is an integer number (1317540).

Almost surely, 212422388 is an apocalyptic number.

It is an amenable number.

12422388 is an abundant number, since it is smaller than the sum of its proper divisors (19198572).

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

12422388 is a wasteful number, since it uses less digits than its factorization.

12422388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94127 (or 94125 counting only the distinct ones).

The product of its digits is 6144, while the sum is 30.

The square root of 12422388 is about 3524.5408211567. The cubic root of 12422388 is about 231.5981201431.

The spelling of 12422388 in words is "twelve million, four hundred twenty-two thousand, three hundred eighty-eight".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 94109 188218 282327 376436 564654 1035199 1129308 2070398 3105597 4140796 6211194 12422388