Search a number
-
+
130472444 = 22178718253
BaseRepresentation
bin1111100011011…
…01100111111100
3100002111200112202
413301231213330
5231400104234
620540251032
73142666064
oct761554774
9302450482
10130472444
1167714973
1237840a78
132105283b
14134843a4
15b6c377e
hex7c6d9fc

130472444 has 12 divisors (see below), whose sum is σ = 228467064. Its totient is φ = 65196144.

The previous prime is 130472437. The next prime is 130472477. The reversal of 130472444 is 444274031.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1979 + ... + 16274.

It is an arithmetic number, because the mean of its divisors is an integer number (19038922).

Almost surely, 2130472444 is an apocalyptic number.

It is an amenable number.

130472444 is a deficient number, since it is larger than the sum of its proper divisors (97994620).

130472444 is a wasteful number, since it uses less digits than its factorization.

130472444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20044 (or 20042 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 29.

The square root of 130472444 is about 11422.4535017657. The cubic root of 130472444 is about 507.1926280661.

The spelling of 130472444 in words is "one hundred thirty million, four hundred seventy-two thousand, four hundred forty-four".

Divisors: 1 2 4 1787 3574 7148 18253 36506 73012 32618111 65236222 130472444