Search a number
-
+
131253130251 = 3223634073093
BaseRepresentation
bin111101000111101001…
…0111101010000001011
3110112210020220212011100
41322033102331100023
54122301300132001
6140144042032443
712324401125215
oct1721722752013
9415706825140
10131253130251
1150733a74471
12215304a8723
13c4b96ac119
1464d1aa95b5
153632d96586
hex1e8f4bd40b

131253130251 has 12 divisors (see below), whose sum is σ = 197830805328. Its totient is φ = 83697648144.

The previous prime is 131253130237. The next prime is 131253130279. The reversal of 131253130251 is 152031352131.

131253130251 is a `hidden beast` number, since 1 + 31 + 253 + 130 + 251 = 666.

It is not a de Polignac number, because 131253130251 - 27 = 131253130123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131253130231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 317036340 + ... + 317036753.

It is an arithmetic number, because the mean of its divisors is an integer number (16485900444).

Almost surely, 2131253130251 is an apocalyptic number.

131253130251 is a deficient number, since it is larger than the sum of its proper divisors (66577675077).

131253130251 is a wasteful number, since it uses less digits than its factorization.

131253130251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634073122 (or 634073119 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

Adding to 131253130251 its reverse (152031352131), we get a palindrome (283284482382).

The spelling of 131253130251 in words is "one hundred thirty-one billion, two hundred fifty-three million, one hundred thirty thousand, two hundred fifty-one".

Divisors: 1 3 9 23 69 207 634073093 1902219279 5706657837 14583681139 43751043417 131253130251