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130472442 = 2327248469
BaseRepresentation
bin1111100011011…
…01100111111010
3100002111200112200
413301231213322
5231400104232
620540251030
73142666062
oct761554772
9302450480
10130472442
1167714971
1237840a76
1321052839
14134843a2
15b6c377c
hex7c6d9fa

130472442 has 12 divisors (see below), whose sum is σ = 282690330. Its totient is φ = 43490808.

The previous prime is 130472437. The next prime is 130472477. The reversal of 130472442 is 244274031.

It can be written as a sum of positive squares in only one way, i.e., 121418361 + 9054081 = 11019^2 + 3009^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3624217 + ... + 3624252.

Almost surely, 2130472442 is an apocalyptic number.

130472442 is an abundant number, since it is smaller than the sum of its proper divisors (152217888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

130472442 is a wasteful number, since it uses less digits than its factorization.

130472442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7248477 (or 7248474 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 130472442 is about 11422.4534142189. The cubic root of 130472442 is about 507.1926254745.

The spelling of 130472442 in words is "one hundred thirty million, four hundred seventy-two thousand, four hundred forty-two".

Divisors: 1 2 3 6 9 18 7248469 14496938 21745407 43490814 65236221 130472442