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375225138 = 23243484787
BaseRepresentation
bin10110010111010…
…111101100110010
3222011001102010100
4112113113230302
51232024201023
6101122213230
712204234561
oct2627275462
9864042110
10375225138
11182894222
12a57b4216
135c978a12
1437b95bd8
1522e1cc43
hex165d7b32

375225138 has 24 divisors (see below), whose sum is σ = 831896208. Its totient is φ = 122166072.

The previous prime is 375225089. The next prime is 375225187. The reversal of 375225138 is 831522573.

It is a happy number.

375225138 is a `hidden beast` number, since 375 + 2 + 251 + 38 = 666.

It is an interprime number because it is at equal distance from previous prime (375225089) and next prime (375225187).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 241620 + ... + 243167.

It is an arithmetic number, because the mean of its divisors is an integer number (34662342).

Almost surely, 2375225138 is an apocalyptic number.

375225138 is an abundant number, since it is smaller than the sum of its proper divisors (456671070).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

375225138 is a wasteful number, since it uses less digits than its factorization.

375225138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484838 (or 484835 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 375225138 is about 19370.7288969724. The cubic root of 375225138 is about 721.2690696980.

The spelling of 375225138 in words is "three hundred seventy-five million, two hundred twenty-five thousand, one hundred thirty-eight".

Divisors: 1 2 3 6 9 18 43 86 129 258 387 774 484787 969574 1454361 2908722 4363083 8726166 20845841 41691682 62537523 125075046 187612569 375225138