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320474123 = 1721108907
BaseRepresentation
bin10011000110100…
…000110000001011
3211100000202211222
4103012200300023
51124020132443
651444512255
710640661614
oct2306406013
9740022758
10320474123
11154998a52
128b3ab68b
1351518c78
14307c2c0b
151d205468
hex131a0c0b

320474123 has 6 divisors (see below), whose sum is σ = 340434756. Its totient is φ = 301622432.

The previous prime is 320474113. The next prime is 320474171. The reversal of 320474123 is 321474023.

It is not a de Polignac number, because 320474123 - 228 = 52038667 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320474092 and 320474101.

It is not an unprimeable number, because it can be changed into a prime (320474113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 554165 + ... + 554742.

It is an arithmetic number, because the mean of its divisors is an integer number (56739126).

Almost surely, 2320474123 is an apocalyptic number.

320474123 is a deficient number, since it is larger than the sum of its proper divisors (19960633).

320474123 is a wasteful number, since it uses less digits than its factorization.

320474123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1108941 (or 1108924 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 320474123 is about 17901.7910556458. The cubic root of 320474123 is about 684.3280198577.

The spelling of 320474123 in words is "three hundred twenty million, four hundred seventy-four thousand, one hundred twenty-three".

Divisors: 1 17 289 1108907 18851419 320474123