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130400120 = 2353260003
BaseRepresentation
bin1111100010110…
…11111101111000
3100002101000100002
413301123331320
5231340300440
620534532132
73142245164
oct761337570
9302330302
10130400120
11676755a4
1237807048
1321028946
1413465ca4
15b6ac115
hex7c5bf78

130400120 has 16 divisors (see below), whose sum is σ = 293400360. Its totient is φ = 52160032.

The previous prime is 130400117. The next prime is 130400129. The reversal of 130400120 is 21004031.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130400129) 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, 1629962 + ... + 1630041.

Almost surely, 2130400120 is an apocalyptic number.

130400120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130400120 is an abundant number, since it is smaller than the sum of its proper divisors (163000240).

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

130400120 is a wasteful number, since it uses less digits than its factorization.

130400120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3260014 (or 3260010 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 130400120 is about 11419.2871931658. The cubic root of 130400120 is about 507.0988944047.

Adding to 130400120 its reverse (21004031), we get a palindrome (151404151).

The spelling of 130400120 in words is "one hundred thirty million, four hundred thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 3260003 6520006 13040012 16300015 26080024 32600030 65200060 130400120