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130140420 = 22352169007
BaseRepresentation
bin1111100000111…
…00100100000100
3100001212211002120
413300130210010
5231303443140
620525205540
73140114064
oct760344404
9301784076
10130140420
1167508473
12377008b0
1320c67687
14133d93a4
15b65a1d0
hex7c1c904

130140420 has 24 divisors (see below), whose sum is σ = 364393344. Its totient is φ = 34704096.

The previous prime is 130140391. The next prime is 130140421. The reversal of 130140420 is 24041031.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 130140420.

It is not an unprimeable number, because it can be changed into a prime (130140421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1084444 + ... + 1084563.

It is an arithmetic number, because the mean of its divisors is an integer number (15183056).

Almost surely, 2130140420 is an apocalyptic number.

130140420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130140420 is an abundant number, since it is smaller than the sum of its proper divisors (234252924).

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

130140420 is a wasteful number, since it uses less digits than its factorization.

130140420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2169019 (or 2169017 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 130140420 is about 11407.9104133930. The cubic root of 130140420 is about 506.7620309492.

Adding to 130140420 its reverse (24041031), we get a palindrome (154181451).

The spelling of 130140420 in words is "one hundred thirty million, one hundred forty thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 2169007 4338014 6507021 8676028 10845035 13014042 21690070 26028084 32535105 43380140 65070210 130140420