Search a number
-
+
130998677 = 521251437
BaseRepresentation
bin1111100111011…
…10000110010101
3100010111102101212
413303232012111
5232013424202
620555431205
73150320225
oct763560625
9303442355
10130998677
1167a44277
1237a55505
13211a8214
1413580085
15b779652
hex7cee195

130998677 has 4 divisors (see below), whose sum is σ = 131250636. Its totient is φ = 130746720.

The previous prime is 130998667. The next prime is 130998689. The reversal of 130998677 is 776899031.

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

It can be written as a sum of positive squares in 2 ways, for example, as 16273156 + 114725521 = 4034^2 + 10711^2 .

It is a cyclic number.

It is not a de Polignac number, because 130998677 - 24 = 130998661 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 (130998607) 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, 125198 + ... + 126239.

It is an arithmetic number, because the mean of its divisors is an integer number (32812659).

Almost surely, 2130998677 is an apocalyptic number.

It is an amenable number.

130998677 is a deficient number, since it is larger than the sum of its proper divisors (251959).

130998677 is an equidigital number, since it uses as much as digits as its factorization.

130998677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251958.

The product of its (nonzero) digits is 571536, while the sum is 50.

The square root of 130998677 is about 11445.4653465903. The cubic root of 130998677 is about 507.8735980899.

The spelling of 130998677 in words is "one hundred thirty million, nine hundred ninety-eight thousand, six hundred seventy-seven".

Divisors: 1 521 251437 130998677