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2131320130 = 25593612407
BaseRepresentation
bin111111100001001…
…0101110101000010
312111112110021120121
41333002111311002
513331104221010
6551253330454
7103546631212
oct17702256502
95445407517
102131320130
119a40903a5
124b5936a2a
1327c735994
141630c0242
15c71a23da
hex7f095d42

2131320130 has 16 divisors (see below), whose sum is σ = 3901400640. Its totient is φ = 838078192.

The previous prime is 2131320127. The next prime is 2131320131. The reversal of 2131320130 is 310231312.

It is not an unprimeable number, because it can be changed into a prime (2131320131) 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, 1805614 + ... + 1806793.

It is an arithmetic number, because the mean of its divisors is an integer number (243837540).

Almost surely, 22131320130 is an apocalyptic number.

2131320130 is a deficient number, since it is larger than the sum of its proper divisors (1770080510).

2131320130 is a wasteful number, since it uses less digits than its factorization.

2131320130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3612473.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 2131320130 is about 46166.2228257847. Note that the first 3 decimals coincide. The cubic root of 2131320130 is about 1286.9141090174.

Adding to 2131320130 its reverse (310231312), we get a palindrome (2441551442).

The spelling of 2131320130 in words is "two billion, one hundred thirty-one million, three hundred twenty thousand, one hundred thirty".

Divisors: 1 2 5 10 59 118 295 590 3612407 7224814 18062035 36124070 213132013 426264026 1065660065 2131320130