Search a number
-
+
130736020 = 2256536801
BaseRepresentation
bin1111100101011…
…01111110010100
3100010000002002211
413302231332110
5231432023040
620550043204
73145144402
oct762557624
9303002084
10130736020
11678849a8
1237949504
13211157bc
1413512472
15b7268ea
hex7cadf94

130736020 has 12 divisors (see below), whose sum is σ = 274545684. Its totient is φ = 52294400.

The previous prime is 130736009. The next prime is 130736101. The reversal of 130736020 is 20637031.

It can be written as a sum of positive squares in 2 ways, for example, as 33200644 + 97535376 = 5762^2 + 9876^2 .

It is a junction number, because it is equal to n+sod(n) for n = 130735982 and 130736000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3268381 + ... + 3268420.

It is an arithmetic number, because the mean of its divisors is an integer number (22878807).

Almost surely, 2130736020 is an apocalyptic number.

130736020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130736020 is an abundant number, since it is smaller than the sum of its proper divisors (143809664).

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

130736020 is a wasteful number, since it uses less digits than its factorization.

130736020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6536810 (or 6536808 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 22.

The square root of 130736020 is about 11433.9853069697. The cubic root of 130736020 is about 507.5339361098.

The spelling of 130736020 in words is "one hundred thirty million, seven hundred thirty-six thousand, twenty".

Divisors: 1 2 4 5 10 20 6536801 13073602 26147204 32684005 65368010 130736020