Search a number
-
+
131239584149 = 1631734654051
BaseRepresentation
bin111101000111001111…
…1010010000110010101
3110112202022102122101212
41322032133102012111
54122234313143044
6140142435431205
712324145026212
oct1721637220625
9415668378355
10131239584149
1150727362043
1221527a55505
13c4b694848b
1464cdd80b09
153631abca9e
hex1e8e7d2195

131239584149 has 8 divisors (see below), whose sum is σ = 132808027872. Its totient is φ = 129680449200.

The previous prime is 131239584143. The next prime is 131239584191. The reversal of 131239584149 is 941485932131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-131239584149 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 131239584097 and 131239584106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131239584143) 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, 2298827 + ... + 2355224.

It is an arithmetic number, because the mean of its divisors is an integer number (16601003484).

Almost surely, 2131239584149 is an apocalyptic number.

It is an amenable number.

131239584149 is a deficient number, since it is larger than the sum of its proper divisors (1568443723).

131239584149 is a wasteful number, since it uses less digits than its factorization.

131239584149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4654387.

The product of its digits is 933120, while the sum is 50.

The spelling of 131239584149 in words is "one hundred thirty-one billion, two hundred thirty-nine million, five hundred eighty-four thousand, one hundred forty-nine".

Divisors: 1 163 173 28199 4654051 758610313 805150823 131239584149