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123425044 = 222937149193
BaseRepresentation
bin1110101101101…
…01000100010100
322121020122022221
413112311010110
5223044100134
620125232124
73026044531
oct726650424
9277218287
10123425044
1163741076
1235402644
131c755b92
141256bd88
15ac805b4
hex75b5114

123425044 has 48 divisors (see below), whose sum is σ = 232218000. Its totient is φ = 57286656.

The previous prime is 123425023. The next prime is 123425101. The reversal of 123425044 is 440524321.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1587600 + 121837444 = 1260^2 + 11038^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 639412 + ... + 639604.

It is an arithmetic number, because the mean of its divisors is an integer number (4837875).

Almost surely, 2123425044 is an apocalyptic number.

It is an amenable number.

123425044 is a deficient number, since it is larger than the sum of its proper divisors (108792956).

123425044 is a wasteful number, since it uses less digits than its factorization.

123425044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412 (or 410 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 123425044 is about 11109.6824437065. The cubic root of 123425044 is about 497.8911769012.

Adding to 123425044 its reverse (440524321), we get a palindrome (563949365).

The spelling of 123425044 in words is "one hundred twenty-three million, four hundred twenty-five thousand, forty-four".

Divisors: 1 2 4 29 37 58 74 116 148 149 193 298 386 596 772 1073 2146 4292 4321 5513 5597 7141 8642 11026 11194 14282 17284 22052 22388 28564 28757 57514 115028 159877 207089 319754 414178 639508 828356 833953 1064009 1667906 2128018 3335812 4256036 30856261 61712522 123425044