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87000014 = 2791992767
BaseRepresentation
bin1010010111110…
…00001111001110
320001201001120202
411023320033032
5134233000024
612344413502
72104326233
oct513701716
9201631522
1087000014
1145122442
1225177292
13150415ca
14b7a978a
157987bae
hex52f83ce

87000014 has 16 divisors (see below), whose sum is σ = 132864000. Its totient is φ = 42718104.

The previous prime is 86999989. The next prime is 87000037. The reversal of 87000014 is 41000078.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 87000014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30059 + ... + 32825.

It is an arithmetic number, because the mean of its divisors is an integer number (8304000).

Almost surely, 287000014 is an apocalyptic number.

87000014 is a deficient number, since it is larger than the sum of its proper divisors (45863986).

87000014 is a wasteful number, since it uses less digits than its factorization.

87000014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3047.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 87000014 is about 9327.3798035676. The cubic root of 87000014 is about 443.1047859374.

The spelling of 87000014 in words is "eighty-seven million, fourteen", and thus it is an aban number.

Divisors: 1 2 79 158 199 398 2767 5534 15721 31442 218593 437186 550633 1101266 43500007 87000014