Search a number
-
+
130894642 = 265447321
BaseRepresentation
bin1111100110101…
…00101100110010
3100010022010200201
413303110230302
5232002112032
620553305414
73146405014
oct763245462
9303263621
10130894642
116798309a
1237a0526a
132116ca68
14135541b4
15b7588e7
hex7cd4b32

130894642 has 4 divisors (see below), whose sum is σ = 196341966. Its totient is φ = 65447320.

The previous prime is 130894639. The next prime is 130894657. The reversal of 130894642 is 246498031.

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

It can be written as a sum of positive squares in only one way, i.e., 124077321 + 6817321 = 11139^2 + 2611^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32723659 + ... + 32723662.

Almost surely, 2130894642 is an apocalyptic number.

130894642 is a deficient number, since it is larger than the sum of its proper divisors (65447324).

130894642 is an equidigital number, since it uses as much as digits as its factorization.

130894642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65447323.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 130894642 is about 11440.9196308688. The cubic root of 130894642 is about 507.7391167749.

The spelling of 130894642 in words is "one hundred thirty million, eight hundred ninety-four thousand, six hundred forty-two".

Divisors: 1 2 65447321 130894642