Search a number
-
+
2137393825 = 52714981971
BaseRepresentation
bin111111101100110…
…0000101010100001
312111221212212010021
41333121200222201
513334133100300
6552031433441
7103652355610
oct17731405241
95457785107
102137393825
119a7559686
124b7985881
13280a81398
14163c21877
15c79a1d1a
hex7f660aa1

2137393825 has 24 divisors (see below), whose sum is σ = 3049358400. Its totient is φ = 1455787200.

The previous prime is 2137393793. The next prime is 2137393831. The reversal of 2137393825 is 5283937312.

It is not a de Polignac number, because 2137393825 - 25 = 2137393793 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14911 + ... + 67060.

It is an arithmetic number, because the mean of its divisors is an integer number (127056600).

Almost surely, 22137393825 is an apocalyptic number.

2137393825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2137393825 is a deficient number, since it is larger than the sum of its proper divisors (911964575).

2137393825 is a wasteful number, since it uses less digits than its factorization.

2137393825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82137 (or 82132 counting only the distinct ones).

The product of its digits is 272160, while the sum is 43.

The square root of 2137393825 is about 46231.9567507152. The cubic root of 2137393825 is about 1288.1354038381.

The spelling of 2137393825 in words is "two billion, one hundred thirty-seven million, three hundred ninety-three thousand, eight hundred twenty-five".

Divisors: 1 5 7 25 35 149 175 745 1043 3725 5215 26075 81971 409855 573797 2049275 2868985 12213679 14344925 61068395 85495753 305341975 427478765 2137393825