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322130023 = 821392363
BaseRepresentation
bin10011001100110…
…101000001100111
3211110010220022121
4103030311001213
51124431130043
651544210411
710661026405
oct2314650147
9743126277
10322130023
1115591a066
128ba69a07
13519788a7
1430ad4475
151d430ded
hex13335067

322130023 has 4 divisors (see below), whose sum is σ = 322523208. Its totient is φ = 321736840.

The previous prime is 322129987. The next prime is 322130033. The reversal of 322130023 is 320031223.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 320031223 = 2313914401.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-322130023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 322129979 and 322130006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (322130033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195361 + ... + 197002.

It is an arithmetic number, because the mean of its divisors is an integer number (80630802).

Almost surely, 2322130023 is an apocalyptic number.

322130023 is a deficient number, since it is larger than the sum of its proper divisors (393185).

322130023 is an equidigital number, since it uses as much as digits as its factorization.

322130023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393184.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 322130023 is about 17947.9810285168. The cubic root of 322130023 is about 685.5046438518.

Adding to 322130023 its reverse (320031223), we get a palindrome (642161246).

The spelling of 322130023 in words is "three hundred twenty-two million, one hundred thirty thousand, twenty-three".

Divisors: 1 821 392363 322130023