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125912409474 = 23172545748491
BaseRepresentation
bin111010101000011110…
…1101110010110000010
3110001000001102010120010
41311100331232112002
54030332034100344
6133502055525350
712045140551545
oct1652075562602
9401001363503
10125912409474
11494432aa945
122049b989856
13bb48095b07
14614667485c
15341e08a8b9
hex1d50f6e582

125912409474 has 32 divisors (see below), whose sum is σ = 266654016576. Its totient is φ = 39499566080.

The previous prime is 125912409473. The next prime is 125912409503. The reversal of 125912409474 is 474904219521.

It is not an unprimeable number, because it can be changed into a prime (125912409473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2572369 + ... + 2620859.

It is an arithmetic number, because the mean of its divisors is an integer number (8332938018).

Almost surely, 2125912409474 is an apocalyptic number.

125912409474 is an abundant number, since it is smaller than the sum of its proper divisors (140741607102).

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

125912409474 is a wasteful number, since it uses less digits than its factorization.

125912409474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73970.

The product of its (nonzero) digits is 725760, while the sum is 48.

The spelling of 125912409474 in words is "one hundred twenty-five billion, nine hundred twelve million, four hundred nine thousand, four hundred seventy-four".

Divisors: 1 2 3 6 17 34 51 102 25457 48491 50914 76371 96982 145473 152742 290946 432769 824347 865538 1298307 1648694 2473041 2596614 4946082 1234435387 2468870774 3703306161 7406612322 20985401579 41970803158 62956204737 125912409474