Base | Representation |
---|---|
bin | 1010011111000… |
… | …01001111111001 |
3 | 20010111112210022 |
4 | 11033201033321 |
5 | 140004020200 |
6 | 12421100225 |
7 | 2115412616 |
oct | 517411771 |
9 | 203445708 |
10 | 87954425 |
11 | 45714509 |
12 | 25557675 |
13 | 152b6b50 |
14 | b97750d |
15 | 7ac5885 |
hex | 53e13f9 |
87954425 has 24 divisors (see below), whose sum is σ = 117997656. Its totient is φ = 64650240.
The previous prime is 87954403. The next prime is 87954443. The reversal of 87954425 is 52445978.
It is a happy number.
It can be written as a sum of positive squares in 12 ways, for example, as 31719424 + 56235001 = 5632^2 + 7499^2 .
It is not a de Polignac number, because 87954425 - 210 = 87953401 is a prime.
It is a Duffinian number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 89537 + ... + 90513.
It is an arithmetic number, because the mean of its divisors is an integer number (4916569).
Almost surely, 287954425 is an apocalyptic number.
It is an amenable number.
87954425 is a deficient number, since it is larger than the sum of its proper divisors (30043231).
87954425 is a wasteful number, since it uses less digits than its factorization.
87954425 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1277 (or 1272 counting only the distinct ones).
The product of its digits is 403200, while the sum is 44.
The square root of 87954425 is about 9378.4020493899. The cubic root of 87954425 is about 444.7192185719.
The spelling of 87954425 in words is "eighty-seven million, nine hundred fifty-four thousand, four hundred twenty-five".
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