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123725041 = 1128911489
BaseRepresentation
bin1110101111111…
…10010011110001
322121210212211221
413113332103301
5223133200131
620135505041
73031434256
oct727762361
9277725757
10123725041
1163926500
1235528181
131c82c5ab
141260942d
15acde411
hex75fe4f1

123725041 has 12 divisors (see below), whose sum is σ = 137535300. Its totient is φ = 111203840.

The previous prime is 123725039. The next prime is 123725047. The reversal of 123725041 is 140527321.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 25715041 + 98010000 = 5071^2 + 9900^2 .

It is not a de Polignac number, because 123725041 - 21 = 123725039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123724997 and 123725015.

It is not an unprimeable number, because it can be changed into a prime (123725047) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5025 + ... + 16513.

It is an arithmetic number, because the mean of its divisors is an integer number (11461275).

Almost surely, 2123725041 is an apocalyptic number.

123725041 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

123725041 is a deficient number, since it is larger than the sum of its proper divisors (13810259).

123725041 is a wasteful number, since it uses less digits than its factorization.

123725041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11600 (or 11589 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 123725041 is about 11123.1758504485. The cubic root of 123725041 is about 498.2942420638.

The spelling of 123725041 in words is "one hundred twenty-three million, seven hundred twenty-five thousand, forty-one".

Divisors: 1 11 89 121 979 10769 11489 126379 1022521 1390169 11247731 123725041