Search a number
-
+
2125602031 = 79726311903
BaseRepresentation
bin111111010110010…
…0001110011101111
312111010200202211011
41332230201303233
513323123231111
6550531010051
7103450214320
oct17654416357
95433622734
102125602031
119a09352a3
124b3a39927
1327b4b30a7
14162432447
15c6923021
hex7eb21cef

2125602031 has 16 divisors (see below), whose sum is σ = 2463842304. Its totient is φ = 1796154624.

The previous prime is 2125602007. The next prime is 2125602049. The reversal of 2125602031 is 1302065212.

It is a cyclic number.

It is not a de Polignac number, because 2125602031 - 25 = 2125601999 is a prime.

It is a super-2 number, since 2×21256020312 = 9036367988382649922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2125601993 and 2125602011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2125602071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 172626 + ... + 184528.

It is an arithmetic number, because the mean of its divisors is an integer number (153990144).

Almost surely, 22125602031 is an apocalyptic number.

2125602031 is a deficient number, since it is larger than the sum of its proper divisors (338240273).

2125602031 is a wasteful number, since it uses less digits than its factorization.

2125602031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12270.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 2125602031 is about 46104.2517670551. The cubic root of 2125602031 is about 1285.7621949420.

Adding to 2125602031 its reverse (1302065212), we get a palindrome (3427667243).

The spelling of 2125602031 in words is "two billion, one hundred twenty-five million, six hundred two thousand, thirty-one".

Divisors: 1 7 97 263 679 1841 11903 25511 83321 178577 1154591 3130489 8082137 21913423 303657433 2125602031