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130440460 = 2256522023
BaseRepresentation
bin1111100011001…
…01110100001100
3100002110001200011
413301211310030
5231343043320
620535443004
73142503613
oct761456414
9302401604
10130440460
11676a2937
1237826464
1321041107
141347687a
15b6b905a
hex7c65d0c

130440460 has 12 divisors (see below), whose sum is σ = 273925008. Its totient is φ = 52176176.

The previous prime is 130440407. The next prime is 130440487. The reversal of 130440460 is 64044031.

It is a happy 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, 3260992 + ... + 3261031.

It is an arithmetic number, because the mean of its divisors is an integer number (22827084).

Almost surely, 2130440460 is an apocalyptic number.

130440460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130440460 is an abundant number, since it is smaller than the sum of its proper divisors (143484548).

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

130440460 is a wasteful number, since it uses less digits than its factorization.

130440460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6522032 (or 6522030 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 130440460 is about 11421.0533664807. The cubic root of 130440460 is about 507.1511802981.

Adding to 130440460 its reverse (64044031), we get a palindrome (194484491).

The spelling of 130440460 in words is "one hundred thirty million, four hundred forty thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 6522023 13044046 26088092 32610115 65220230 130440460