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130233023 = 939713859
BaseRepresentation
bin1111100001100…
…11001010111111
3100002001112010022
413300303022333
5231314424043
620531202355
73140651054
oct760631277
9302045108
10130233023
1167570aa8
12377463bb
1320c9a87b
141342102b
15b677868
hex7c332bf

130233023 has 4 divisors (see below), whose sum is σ = 130256280. Its totient is φ = 130209768.

The previous prime is 130233013. The next prime is 130233029. The reversal of 130233023 is 320332031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 320332031 = 857373783.

It is a cyclic number.

It is not a de Polignac number, because 130233023 - 26 = 130232959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130232992 and 130233010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130233029) by changing a digit.

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, 2468 + ... + 16326.

It is an arithmetic number, because the mean of its divisors is an integer number (32564070).

Almost surely, 2130233023 is an apocalyptic number.

130233023 is a deficient number, since it is larger than the sum of its proper divisors (23257).

130233023 is an equidigital number, since it uses as much as digits as its factorization.

130233023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23256.

The product of its (nonzero) digits is 324, while the sum is 17.

The square root of 130233023 is about 11411.9684104014. The cubic root of 130233023 is about 506.8822000150.

Adding to 130233023 its reverse (320332031), we get a palindrome (450565054).

The spelling of 130233023 in words is "one hundred thirty million, two hundred thirty-three thousand, twenty-three".

Divisors: 1 9397 13859 130233023