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123022132 = 22171809149
BaseRepresentation
bin1110101010100…
…10101100110100
322120111011122021
413111102230310
5222443202012
620112442524
73022446052
oct725225464
9276434567
10123022132
1163496392
1235249444
131c64467c
14124a51d2
15ac01007
hex7552b34

123022132 has 12 divisors (see below), whose sum is σ = 227952900. Its totient is φ = 57892736.

The previous prime is 123022127. The next prime is 123022153. The reversal of 123022132 is 231220321.

It can be written as a sum of positive squares in 2 ways, for example, as 86007076 + 37015056 = 9274^2 + 6084^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 904507 + ... + 904642.

It is an arithmetic number, because the mean of its divisors is an integer number (18996075).

Almost surely, 2123022132 is an apocalyptic number.

It is an amenable number.

123022132 is a deficient number, since it is larger than the sum of its proper divisors (104930768).

123022132 is a wasteful number, since it uses less digits than its factorization.

123022132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1809170 (or 1809168 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 123022132 is about 11091.5342491470. The cubic root of 123022132 is about 497.3488098950.

Adding to 123022132 its reverse (231220321), we get a palindrome (354242453).

The spelling of 123022132 in words is "one hundred twenty-three million, twenty-two thousand, one hundred thirty-two".

Divisors: 1 2 4 17 34 68 1809149 3618298 7236596 30755533 61511066 123022132