Search a number
-
+
130926439 = 718703777
BaseRepresentation
bin1111100110111…
…00011101100111
3100010100202022101
413303130131213
5232004121224
620554112531
73146566510
oct763343547
9303322271
10130926439
11679a4a76
1237a1b747
1321181387
1413561a07
15b763044
hex7cdc767

130926439 has 4 divisors (see below), whose sum is σ = 149630224. Its totient is φ = 112222656.

The previous prime is 130926431. The next prime is 130926479. The reversal of 130926439 is 934629031.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 130926439 - 23 = 130926431 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130926398 and 130926407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130926431) 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, 9351882 + ... + 9351895.

It is an arithmetic number, because the mean of its divisors is an integer number (37407556).

Almost surely, 2130926439 is an apocalyptic number.

130926439 is a deficient number, since it is larger than the sum of its proper divisors (18703785).

130926439 is an equidigital number, since it uses as much as digits as its factorization.

130926439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18703784.

The product of its (nonzero) digits is 34992, while the sum is 37.

The square root of 130926439 is about 11442.3091638008. The cubic root of 130926439 is about 507.7802268702.

The spelling of 130926439 in words is "one hundred thirty million, nine hundred twenty-six thousand, four hundred thirty-nine".

Divisors: 1 7 18703777 130926439