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87980262 = 2314663377
BaseRepresentation
bin1010011111001…
…11100011100110
320010112212020020
411033213203212
5140010332022
612421420010
72115551136
oct517474346
9203485206
1087980262
1145731967
122556a606
13152c5836
14b982ac6
157acd35c
hex53e78e6

87980262 has 8 divisors (see below), whose sum is σ = 175960536. Its totient is φ = 29326752.

The previous prime is 87980237. The next prime is 87980281. The reversal of 87980262 is 26208978.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

87980262 is an admirable number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7331683 + ... + 7331694.

It is an arithmetic number, because the mean of its divisors is an integer number (21995067).

Almost surely, 287980262 is an apocalyptic number.

87980262 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

87980262 is a wasteful number, since it uses less digits than its factorization.

87980262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14663382.

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 87980262 is about 9379.7794217135. The cubic root of 87980262 is about 444.7627603855.

The spelling of 87980262 in words is "eighty-seven million, nine hundred eighty thousand, two hundred sixty-two".

Divisors: 1 2 3 6 14663377 29326754 43990131 87980262