Search a number
-
+
130653509 = 718664787
BaseRepresentation
bin1111100100110…
…01110101000101
3100002211212220212
413302121311011
5231421403014
620544205205
73144352010
oct762316505
9302755825
10130653509
1167828a08
1237909805
13210b708c
14134d0377
15b70c23e
hex7c99d45

130653509 has 4 divisors (see below), whose sum is σ = 149318304. Its totient is φ = 111988716.

The previous prime is 130653493. The next prime is 130653529. The reversal of 130653509 is 905356031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 130653509 - 24 = 130653493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130653529) 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, 9332387 + ... + 9332400.

It is an arithmetic number, because the mean of its divisors is an integer number (37329576).

Almost surely, 2130653509 is an apocalyptic number.

It is an amenable number.

130653509 is a deficient number, since it is larger than the sum of its proper divisors (18664795).

130653509 is an equidigital number, since it uses as much as digits as its factorization.

130653509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18664794.

The product of its (nonzero) digits is 12150, while the sum is 32.

The square root of 130653509 is about 11430.3765904715. The cubic root of 130653509 is about 507.4271408909.

The spelling of 130653509 in words is "one hundred thirty million, six hundred fifty-three thousand, five hundred nine".

Divisors: 1 7 18664787 130653509