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130244432443 = 173752857991
BaseRepresentation
bin111100101001100101…
…1000101001000111011
3110110011221212200220021
41321103023011020323
54113220033314233
6135500010111311
712260402260246
oct1712313051073
9413157780807
10130244432443
115026664a914
12212aa71b537
13c388718008
146437b3625d
1535c4547e2d
hex1e532c523b

130244432443 has 4 divisors (see below), whose sum is σ = 130997290608. Its totient is φ = 129491574280.

The previous prime is 130244432399. The next prime is 130244432449. The reversal of 130244432443 is 344234442031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 344234442031 = 675137827493.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-130244432443 is a prime.

It is a super-2 number, since 2×1302444324432 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130244432399 and 130244432408.

It is not an unprimeable number, because it can be changed into a prime (130244432449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 376428823 + ... + 376429168.

It is an arithmetic number, because the mean of its divisors is an integer number (32749322652).

Almost surely, 2130244432443 is an apocalyptic number.

130244432443 is a deficient number, since it is larger than the sum of its proper divisors (752858165).

130244432443 is an equidigital number, since it uses as much as digits as its factorization.

130244432443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752858164.

The product of its (nonzero) digits is 110592, while the sum is 34.

Adding to 130244432443 its reverse (344234442031), we get a palindrome (474478874474).

The spelling of 130244432443 in words is "one hundred thirty billion, two hundred forty-four million, four hundred thirty-two thousand, four hundred forty-three".

Divisors: 1 173 752857991 130244432443