Search a number
-
+
2125652231 = 17891188179
BaseRepresentation
bin111111010110010…
…1110000100000111
312111010210022200102
41332230232010013
513323131332411
6550532034315
7103450513553
oct17654560407
95433708612
102125652231
119a0969a8a
124b3a6299b
1327b4ccbb1
14162446863
15c6932d3b
hex7eb2e107

2125652231 has 4 divisors (see below), whose sum is σ = 2126842200. Its totient is φ = 2124462264.

The previous prime is 2125652219. The next prime is 2125652233. The reversal of 2125652231 is 1322565212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2125652231 - 26 = 2125652167 is a prime.

It is a super-2 number, since 2×21256522312 = 9036794814310554722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2125652194 and 2125652203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2125652233) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 592301 + ... + 595878.

It is an arithmetic number, because the mean of its divisors is an integer number (531710550).

Almost surely, 22125652231 is an apocalyptic number.

2125652231 is a deficient number, since it is larger than the sum of its proper divisors (1189969).

2125652231 is a wasteful number, since it uses less digits than its factorization.

2125652231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1189968.

The product of its digits is 7200, while the sum is 29.

The square root of 2125652231 is about 46104.7961821761. The cubic root of 2125652231 is about 1285.7723167417.

The spelling of 2125652231 in words is "two billion, one hundred twenty-five million, six hundred fifty-two thousand, two hundred thirty-one".

Divisors: 1 1789 1188179 2125652231