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320042088 = 23324445029
BaseRepresentation
bin10011000100110…
…111010001101000
3211022012211012200
4103010313101220
51123412321323
651431340200
710634212212
oct2304672150
9738184180
10320042088
111547233a3
128b221660
13513c7422
143070d5b2
151d16c443
hex13137468

320042088 has 24 divisors (see below), whose sum is σ = 866780850. Its totient is φ = 106680672.

The previous prime is 320042087. The next prime is 320042101. The reversal of 320042088 is 880240023.

It can be written as a sum of positive squares in only one way, i.e., 293848164 + 26193924 = 17142^2 + 5118^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (320042087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2222443 + ... + 2222586.

Almost surely, 2320042088 is an apocalyptic number.

It is an amenable number.

320042088 is an abundant number, since it is smaller than the sum of its proper divisors (546738762).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320042088 is a wasteful number, since it uses less digits than its factorization.

320042088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4445041 (or 4445034 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 320042088 is about 17889.7201766825. The cubic root of 320042088 is about 684.0203646343.

The spelling of 320042088 in words is "three hundred twenty million, forty-two thousand, eighty-eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 4445029 8890058 13335087 17780116 26670174 35560232 40005261 53340348 80010522 106680696 160021044 320042088