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130322020 = 2257278963
BaseRepresentation
bin1111100010010…
…00111001100100
3100002020001012111
413301020321210
5231330301040
620533130404
73141501403
oct761107144
9302201174
10130322020
1167621954
1237789a04
1320ccc22a
141344563a
15b693dea
hex7c48e64

130322020 has 24 divisors (see below), whose sum is σ = 274083264. Its totient is φ = 52051296.

The previous prime is 130321993. The next prime is 130322021. The reversal of 130322020 is 20223031.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (130322021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10059 + ... + 19021.

It is an arithmetic number, because the mean of its divisors is an integer number (11420136).

Almost surely, 2130322020 is an apocalyptic number.

130322020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130322020 is an abundant number, since it is smaller than the sum of its proper divisors (143761244).

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

130322020 is a wasteful number, since it uses less digits than its factorization.

130322020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9699 (or 9697 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 130322020 is about 11415.8670279572. The cubic root of 130322020 is about 506.9976359780.

Adding to 130322020 its reverse (20223031), we get a palindrome (150545051).

The spelling of 130322020 in words is "one hundred thirty million, three hundred twenty-two thousand, twenty".

Divisors: 1 2 4 5 10 20 727 1454 2908 3635 7270 8963 14540 17926 35852 44815 89630 179260 6516101 13032202 26064404 32580505 65161010 130322020