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125947480 = 2353148687
BaseRepresentation
bin1111000000111…
…00111001011000
322202222210110111
413200130321120
5224220304410
620255254104
73056351551
oct740347130
9282883414
10125947480
116510422a
123621a334
132012a049
1412a27328
15b0ccb8a
hex781ce58

125947480 has 16 divisors (see below), whose sum is σ = 283381920. Its totient is φ = 50378976.

The previous prime is 125947463. The next prime is 125947487. The reversal of 125947480 is 84749521.

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 3148687 = 125947480 / (1 + 2 + 5 + 9 + 4 + 7 + 4 + 8 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125947487) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1574304 + ... + 1574383.

It is an arithmetic number, because the mean of its divisors is an integer number (17711370).

Almost surely, 2125947480 is an apocalyptic number.

125947480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125947480 is an abundant number, since it is smaller than the sum of its proper divisors (157434440).

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

125947480 is a wasteful number, since it uses less digits than its factorization.

125947480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3148698 (or 3148694 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 125947480 is about 11222.6324897503. The cubic root of 125947480 is about 501.2601281528.

The spelling of 125947480 in words is "one hundred twenty-five million, nine hundred forty-seven thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 3148687 6297374 12594748 15743435 25189496 31486870 62973740 125947480