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320614442 = 2160307221
BaseRepresentation
bin10011000111000…
…011000000101010
3211100021220022222
4103013003000222
51124034130232
651451514042
710642114661
oct2307030052
9740256288
10320614442
11154a84415
128b458922
1351567ab5
143081bdd8
151d231d12
hex131c302a

320614442 has 4 divisors (see below), whose sum is σ = 480921666. Its totient is φ = 160307220.

The previous prime is 320614433. The next prime is 320614447. The reversal of 320614442 is 244416023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 244416023 = 1671463569.

It can be written as a sum of positive squares in only one way, i.e., 182763361 + 137851081 = 13519^2 + 11741^2 .

It is not an unprimeable number, because it can be changed into a prime (320614447) 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 as a sum of consecutive naturals, namely, 80153609 + ... + 80153612.

Almost surely, 2320614442 is an apocalyptic number.

320614442 is a deficient number, since it is larger than the sum of its proper divisors (160307224).

320614442 is a wasteful number, since it uses less digits than its factorization.

320614442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160307223.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 320614442 is about 17905.7097597387. The cubic root of 320614442 is about 684.4278825354.

The spelling of 320614442 in words is "three hundred twenty million, six hundred fourteen thousand, four hundred forty-two".

Divisors: 1 2 160307221 320614442