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130140020 = 2257389137
BaseRepresentation
bin1111100000111…
…00011101110100
3100001212210112202
413300130131310
5231303440040
620525204032
73140112653
oct760343564
9301783482
10130140020
116750813a
1237700618
1320c6743a
14133d919a
15b65a015
hex7c1c774

130140020 has 24 divisors (see below), whose sum is σ = 277040904. Its totient is φ = 51342336.

The previous prime is 130140011. The next prime is 130140047. The reversal of 130140020 is 20041031.

It is a happy number.

130140020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 43612816 + 86527204 = 6604^2 + 9302^2 .

It is a junction number, because it is equal to n+sod(n) for n = 130139983 and 130140010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43109 + ... + 46028.

It is an arithmetic number, because the mean of its divisors is an integer number (11543371).

Almost surely, 2130140020 is an apocalyptic number.

130140020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130140020 is an abundant number, since it is smaller than the sum of its proper divisors (146900884).

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

130140020 is a wasteful number, since it uses less digits than its factorization.

130140020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89219 (or 89217 counting only the distinct ones).

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

The square root of 130140020 is about 11407.8928816850. The cubic root of 130140020 is about 506.7615117535.

Adding to 130140020 its reverse (20041031), we get a palindrome (150181051).

The spelling of 130140020 in words is "one hundred thirty million, one hundred forty thousand, twenty".

Divisors: 1 2 4 5 10 20 73 146 292 365 730 1460 89137 178274 356548 445685 891370 1782740 6507001 13014002 26028004 32535005 65070010 130140020