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123382944425 = 52132411575269
BaseRepresentation
bin111001011101000110…
…0100101001010101001
3102210110202202222211102
41302322030211022221
54010142013210200
6132403100411145
711625354503066
oct1627214451251
9383422688742
10123382944425
1148365501364
121bab4846ab5
13b83401b030
145d86753c6d
153321e8e6d5
hex1cba3252a9

123382944425 has 24 divisors (see below), whose sum is σ = 165447457560. Its totient is φ = 90735436800.

The previous prime is 123382944413. The next prime is 123382944427. The reversal of 123382944425 is 524449283321.

It can be written as a sum of positive squares in 12 ways, for example, as 10447292944 + 112935651481 = 102212^2 + 336059^2 .

It is not a de Polignac number, because 123382944425 - 24 = 123382944409 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123382944425.

It is not an unprimeable number, because it can be changed into a prime (123382944427) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 709310 + ... + 865959.

It is an arithmetic number, because the mean of its divisors is an integer number (6893644065).

Almost surely, 2123382944425 is an apocalyptic number.

It is an amenable number.

123382944425 is a deficient number, since it is larger than the sum of its proper divisors (42064513135).

123382944425 is a wasteful number, since it uses less digits than its factorization.

123382944425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1575533 (or 1575528 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 47.

The spelling of 123382944425 in words is "one hundred twenty-three billion, three hundred eighty-two million, nine hundred forty-four thousand, four hundred twenty-five".

Divisors: 1 5 13 25 65 241 325 1205 3133 6025 15665 78325 1575269 7876345 20478497 39381725 102392485 379639829 511962425 1898199145 4935317777 9490995725 24676588885 123382944425