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125215213130 = 2572961682371
BaseRepresentation
bin111010010011101101…
…0001000011001001010
3102222012110111212222022
41310213122020121022
54022420043310010
6133304552324442
712021643515260
oct1644732103112
9388173455868
10125215213130
11491157a5a17
12203263a3722
13ba667c88b7
1460bbc2a430
1533ccc6dd55
hex1d2768864a

125215213130 has 32 divisors (see below), whose sum is σ = 266467847040. Its totient is φ = 41450552640.

The previous prime is 125215213061. The next prime is 125215213171. The reversal of 125215213130 is 31312512521.

It is a self number, because there is not a number n which added to its sum of digits gives 125215213130.

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 15 ways as a sum of consecutive naturals, for example, 30839156 + ... + 30843215.

It is an arithmetic number, because the mean of its divisors is an integer number (8327120220).

Almost surely, 2125215213130 is an apocalyptic number.

125215213130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125215213130 is an abundant number, since it is smaller than the sum of its proper divisors (141252633910).

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

125215213130 is a wasteful number, since it uses less digits than its factorization.

125215213130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61682414.

The product of its (nonzero) digits is 1800, while the sum is 26.

Adding to 125215213130 its reverse (31312512521), we get a palindrome (156527725651).

The spelling of 125215213130 in words is "one hundred twenty-five billion, two hundred fifteen million, two hundred thirteen thousand, one hundred thirty".

Divisors: 1 2 5 7 10 14 29 35 58 70 145 203 290 406 1015 2030 61682371 123364742 308411855 431776597 616823710 863553194 1788788759 2158882985 3577577518 4317765970 8943943795 12521521313 17887887590 25043042626 62607606565 125215213130