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125875420 = 22511572161
BaseRepresentation
bin1111000000010…
…11010011011100
322202212010121121
413200023103130
5224211003140
620253540324
73055631506
oct740132334
9282763547
10125875420
1165065080
12361a46a4
13201032c8
1412a08d76
15b0b664a
hex780b4dc

125875420 has 24 divisors (see below), whose sum is σ = 288369648. Its totient is φ = 45772800.

The previous prime is 125875397. The next prime is 125875439. The reversal of 125875420 is 24578521.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 285861 + ... + 286300.

It is an arithmetic number, because the mean of its divisors is an integer number (12015402).

Almost surely, 2125875420 is an apocalyptic number.

125875420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125875420 is an abundant number, since it is smaller than the sum of its proper divisors (162494228).

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

125875420 is a wasteful number, since it uses less digits than its factorization.

125875420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572181 (or 572179 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 34.

The square root of 125875420 is about 11219.4215537166. The cubic root of 125875420 is about 501.1645123829.

The spelling of 125875420 in words is "one hundred twenty-five million, eight hundred seventy-five thousand, four hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 572161 1144322 2288644 2860805 5721610 6293771 11443220 12587542 25175084 31468855 62937710 125875420