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87498673 = 3719312253
BaseRepresentation
bin1010011011100…
…01111110110001
320002122101121121
411031301332301
5134344424143
612403222241
72111504113
oct515617661
9202571547
1087498673
1145433059
1225377981
1315187582
14b8993b3
157a357ed
hex5371fb1

87498673 has 8 divisors (see below), whose sum is σ = 90336488. Its totient is φ = 84685824.

The previous prime is 87498661. The next prime is 87498689. The reversal of 87498673 is 37689478.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 18558864 + 68939809 = 4308^2 + 8303^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 87498673 - 25 = 87498641 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 87498673.

It is not an unprimeable number, because it can be changed into a prime (87498613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1015 + ... + 13267.

It is an arithmetic number, because the mean of its divisors is an integer number (11292061).

Almost surely, 287498673 is an apocalyptic number.

It is an amenable number.

87498673 is a deficient number, since it is larger than the sum of its proper divisors (2837815).

87498673 is a wasteful number, since it uses less digits than its factorization.

87498673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12483.

The product of its digits is 2032128, while the sum is 52.

The square root of 87498673 is about 9354.0725355323. The cubic root of 87498673 is about 443.9497565769.

The spelling of 87498673 in words is "eighty-seven million, four hundred ninety-eight thousand, six hundred seventy-three".

Divisors: 1 37 193 7141 12253 453361 2364829 87498673