Search a number
-
+
131119387 = 718731341
BaseRepresentation
bin1111101000010…
…11100100011011
3100010201112222121
413310023210123
5232031310022
621002202111
73151332160
oct764134433
9303645877
10131119387
1168016a33
1237ab3337
132121b149
14135b2067
15b7a02c7
hex7d0b91b

131119387 has 4 divisors (see below), whose sum is σ = 149850736. Its totient is φ = 112388040.

The previous prime is 131119369. The next prime is 131119397. The reversal of 131119387 is 783911131.

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 131119387 - 27 = 131119259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131119327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9365664 + ... + 9365677.

It is an arithmetic number, because the mean of its divisors is an integer number (37462684).

Almost surely, 2131119387 is an apocalyptic number.

131119387 is a deficient number, since it is larger than the sum of its proper divisors (18731349).

131119387 is an equidigital number, since it uses as much as digits as its factorization.

131119387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18731348.

The product of its digits is 4536, while the sum is 34.

The square root of 131119387 is about 11450.7373998359. The cubic root of 131119387 is about 508.0295452157.

The spelling of 131119387 in words is "one hundred thirty-one million, one hundred nineteen thousand, three hundred eighty-seven".

Divisors: 1 7 18731341 131119387