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123272372 = 22172106637
BaseRepresentation
bin1110101100011…
…11110010110100
322120221212220102
413112033302310
5223024203442
620122053232
73024540446
oct726176264
9276855812
10123272372
11636473a3
123534a218
131c701542
141252c496
15ac50232
hex758fcb4

123272372 has 18 divisors (see below), whose sum is σ = 229165062. Its totient is φ = 58009984.

The previous prime is 123272371. The next prime is 123272407. The reversal of 123272372 is 273272321.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 89794576 + 33477796 = 9476^2 + 5786^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123272371) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 52163 + ... + 54474.

Almost surely, 2123272372 is an apocalyptic number.

It is an amenable number.

123272372 is a deficient number, since it is larger than the sum of its proper divisors (105892690).

123272372 is a wasteful number, since it uses less digits than its factorization.

123272372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106675 (or 106656 counting only the distinct ones).

The product of its digits is 7056, while the sum is 29.

The square root of 123272372 is about 11102.8091940734. The cubic root of 123272372 is about 497.6858014955.

The spelling of 123272372 in words is "one hundred twenty-three million, two hundred seventy-two thousand, three hundred seventy-two".

Divisors: 1 2 4 17 34 68 289 578 1156 106637 213274 426548 1812829 3625658 7251316 30818093 61636186 123272372