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320100023 = 1072991589
BaseRepresentation
bin10011000101000…
…101011010110111
3211022022202200102
4103011011122313
51123421200043
651432504315
710634543135
oct2305053267
9738282612
10320100023
11154762981
128b24b09b
13514178c9
1430726755
151d17e6b8
hex131456b7

320100023 has 4 divisors (see below), whose sum is σ = 323091720. Its totient is φ = 317108328.

The previous prime is 320099977. The next prime is 320100031. The reversal of 320100023 is 320001023.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 320100023 - 214 = 320083639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320099977 and 320100013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320100083) 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, 1495688 + ... + 1495901.

It is an arithmetic number, because the mean of its divisors is an integer number (80772930).

Almost surely, 2320100023 is an apocalyptic number.

320100023 is a deficient number, since it is larger than the sum of its proper divisors (2991697).

320100023 is a wasteful number, since it uses less digits than its factorization.

320100023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2991696.

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 320100023 is about 17891.3393294074. The cubic root of 320100023 is about 684.0616366318.

Adding to 320100023 its reverse (320001023), we get a palindrome (640101046).

It can be divided in two parts, 3201000 and 23, that added together give a palindrome (3201023).

The spelling of 320100023 in words is "three hundred twenty million, one hundred thousand, twenty-three".

Divisors: 1 107 2991589 320100023