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80031864 = 23311303151
BaseRepresentation
bin1001100010100…
…11000001111000
312120121001002010
410301103001320
5130442004424
611535205520
71661155023
oct461230170
9176531063
1080031864
11411a3140
12229768a0
1313771a43
14a8b41ba
15705d229
hex4c53078

80031864 has 32 divisors (see below), whose sum is σ = 218269440. Its totient is φ = 24252000.

The previous prime is 80031773. The next prime is 80031883. The reversal of 80031864 is 46813008.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 151312 + ... + 151839.

It is an arithmetic number, because the mean of its divisors is an integer number (6820920).

Almost surely, 280031864 is an apocalyptic number.

It is an amenable number.

80031864 is an abundant number, since it is smaller than the sum of its proper divisors (138237576).

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

80031864 is a wasteful number, since it uses less digits than its factorization.

80031864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303171 (or 303167 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 80031864 is about 8946.0529844172. The cubic root of 80031864 is about 430.9441378353.

The spelling of 80031864 in words is "eighty million, thirty-one thousand, eight hundred sixty-four".

Divisors: 1 2 3 4 6 8 11 12 22 24 33 44 66 88 132 264 303151 606302 909453 1212604 1818906 2425208 3334661 3637812 6669322 7275624 10003983 13338644 20007966 26677288 40015932 80031864