Search a number
-
+
2131880227 = 10847196541
BaseRepresentation
bin111111100010001…
…1110100100100011
312111120111201212221
41333010132210203
513331230131402
6551313331511
7103554453151
oct17704364443
95446451787
102131880227
119a4433194
124b5b66b97
1327c8a08b9
141631c83d1
15c7263337
hex7f11e923

2131880227 has 4 divisors (see below), whose sum is σ = 2132087616. Its totient is φ = 2131672840.

The previous prime is 2131880221. The next prime is 2131880249. The reversal of 2131880227 is 7220881312.

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 2131880227 - 211 = 2131878179 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2131880192 and 2131880201.

It is not an unprimeable number, because it can be changed into a prime (2131880221) 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, 87424 + ... + 109117.

It is an arithmetic number, because the mean of its divisors is an integer number (533021904).

Almost surely, 22131880227 is an apocalyptic number.

2131880227 is a deficient number, since it is larger than the sum of its proper divisors (207389).

2131880227 is a wasteful number, since it uses less digits than its factorization.

2131880227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207388.

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 2131880227 is about 46172.2885181144. The cubic root of 2131880227 is about 1287.0268300161.

The spelling of 2131880227 in words is "two billion, one hundred thirty-one million, eight hundred eighty thousand, two hundred twenty-seven".

Divisors: 1 10847 196541 2131880227