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125640323060 = 2257897430879
BaseRepresentation
bin111010100000010111…
…1110010111111110100
3110000022002102201011112
41311000233302333310
54024302410314220
6133415100054152
712035325060650
oct1650057627764
9400262381145
10125640323060
114931376133a
1220424834358
13bb038bc435
14611c489a60
1534052425c5
hex1d40bf2ff4

125640323060 has 24 divisors (see below), whose sum is σ = 301536775680. Its totient is φ = 43076682144.

The previous prime is 125640323033. The next prime is 125640323069. The reversal of 125640323060 is 60323046521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125640323069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 448715300 + ... + 448715579.

It is an arithmetic number, because the mean of its divisors is an integer number (12564032320).

Almost surely, 2125640323060 is an apocalyptic number.

125640323060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125640323060 is an abundant number, since it is smaller than the sum of its proper divisors (175896452620).

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

125640323060 is a wasteful number, since it uses less digits than its factorization.

125640323060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897430895 (or 897430893 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 32.

Adding to 125640323060 its reverse (60323046521), we get a palindrome (185963369581).

The spelling of 125640323060 in words is "one hundred twenty-five billion, six hundred forty million, three hundred twenty-three thousand, sixty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 897430879 1794861758 3589723516 4487154395 6282016153 8974308790 12564032306 17948617580 25128064612 31410080765 62820161530 125640323060