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87494085 = 3257377507
BaseRepresentation
bin1010011011100…
…00110111000101
320002122011022200
411031300313011
5134344302320
612403145113
72111454540
oct515606705
9202564280
1087494085
114542a668
1225375199
1315185463
14b897857
157a34290
hex5370dc5

87494085 has 48 divisors (see below), whose sum is σ = 178029696. Its totient is φ = 38911104.

The previous prime is 87494083. The next prime is 87494089. The reversal of 87494085 is 58049478.

87494085 is a `hidden beast` number, since 87 + 494 + 0 + 85 = 666.

87494085 is nontrivially palindromic in base 4.

It is not a de Polignac number, because 87494085 - 21 = 87494083 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 87494085.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87494083) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7902 + ... + 15408.

It is an arithmetic number, because the mean of its divisors is an integer number (3708952).

Almost surely, 287494085 is an apocalyptic number.

It is an amenable number.

87494085 is an abundant number, since it is smaller than the sum of its proper divisors (90535611).

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

87494085 is a wasteful number, since it uses less digits than its factorization.

87494085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7562 (or 7559 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 87494085 is about 9353.8272915422. The cubic root of 87494085 is about 443.9419969275.

The spelling of 87494085 in words is "eighty-seven million, four hundred ninety-four thousand, eighty-five".

Divisors: 1 3 5 7 9 15 21 35 37 45 63 105 111 185 259 315 333 555 777 1295 1665 2331 3885 7507 11655 22521 37535 52549 67563 112605 157647 262745 277759 337815 472941 788235 833277 1388795 1944313 2364705 2499831 4166385 5832939 9721565 12499155 17498817 29164695 87494085