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2125518852 = 223177126571
BaseRepresentation
bin111111010110000…
…1101100000000100
312111010112112201110
41332230031200010
513323113100402
6550525125020
7103446416652
oct17654154004
95433475643
102125518852
119a0888856
124b39b9770
1327b484282
1416240ddd2
15c690856c
hex7eb0d804

2125518852 has 12 divisors (see below), whose sum is σ = 4959544016. Its totient is φ = 708506280.

The previous prime is 2125518851. The next prime is 2125518883. The reversal of 2125518852 is 2588155212.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 2125518852.

It is not an unprimeable number, because it can be changed into a prime (2125518851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88563274 + ... + 88563297.

Almost surely, 22125518852 is an apocalyptic number.

It is an amenable number.

2125518852 is an abundant number, since it is smaller than the sum of its proper divisors (2834025164).

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

2125518852 is a wasteful number, since it uses less digits than its factorization.

2125518852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177126578 (or 177126576 counting only the distinct ones).

The product of its digits is 64000, while the sum is 39.

The square root of 2125518852 is about 46103.3496830762. The cubic root of 2125518852 is about 1285.7454232530.

The spelling of 2125518852 in words is "two billion, one hundred twenty-five million, five hundred eighteen thousand, eight hundred fifty-two".

Divisors: 1 2 3 4 6 12 177126571 354253142 531379713 708506284 1062759426 2125518852