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130323331 = 499261169
BaseRepresentation
bin1111100010010…
…01001110000011
3100002020010000001
413301021032003
5231330321311
620533140431
73141505255
oct761111603
9302203001
10130323331
1167622936
123778a717
1320ccc9c8
1413445cd5
15b6944c1
hex7c49383

130323331 has 4 divisors (see below), whose sum is σ = 130585000. Its totient is φ = 130061664.

The previous prime is 130323329. The next prime is 130323341. The reversal of 130323331 is 133323031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133323031 = 161982349.

It is a cyclic number.

It is not a de Polignac number, because 130323331 - 21 = 130323329 is a prime.

It is a super-2 number, since 2×1303233312 = 33968341205871122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130323299 and 130323308.

It is not an unprimeable number, because it can be changed into a prime (130323301) 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 3 ways as a sum of consecutive naturals, for example, 130086 + ... + 131083.

It is an arithmetic number, because the mean of its divisors is an integer number (32646250).

Almost surely, 2130323331 is an apocalyptic number.

130323331 is a deficient number, since it is larger than the sum of its proper divisors (261669).

130323331 is an equidigital number, since it uses as much as digits as its factorization.

130323331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261668.

The product of its (nonzero) digits is 486, while the sum is 19.

The square root of 130323331 is about 11415.9244478930. The cubic root of 130323331 is about 506.9993360531. Note that the first 3 decimals are identical.

Adding to 130323331 its reverse (133323031), we get a palindrome (263646362).

The spelling of 130323331 in words is "one hundred thirty million, three hundred twenty-three thousand, three hundred thirty-one".

Divisors: 1 499 261169 130323331