Base | Representation |
---|---|
bin | 1010011101000… |
… | …01010011101101 |
3 | 20010000020112022 |
4 | 11032201103231 |
5 | 134422130100 |
6 | 12411315525 |
7 | 2113242224 |
oct | 516412355 |
9 | 203006468 |
10 | 87692525 |
11 | 45555768 |
12 | 2544bba5 |
13 | 1522488b |
14 | b909cbb |
15 | 7a72e85 |
hex | 53a14ed |
87692525 has 12 divisors (see below), whose sum is σ = 108892212. Its totient is φ = 70055040.
The previous prime is 87692519. The next prime is 87692531. The reversal of 87692525 is 52529678.
It is an interprime number because it is at equal distance from previous prime (87692519) and next prime (87692531).
It can be written as a sum of positive squares in 6 ways, for example, as 438244 + 87254281 = 662^2 + 9341^2 .
It is not a de Polignac number, because 87692525 - 26 = 87692461 is a prime.
It is a super-4 number, since 4×876925254 (a number of 33 digits) contains 4444 as substring.
It is an alternating number because its digits alternate between even and odd.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19379 + ... + 23471.
It is an arithmetic number, because the mean of its divisors is an integer number (9074351).
Almost surely, 287692525 is an apocalyptic number.
It is an amenable number.
87692525 is a deficient number, since it is larger than the sum of its proper divisors (21199687).
87692525 is a wasteful number, since it uses less digits than its factorization.
87692525 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4960 (or 4955 counting only the distinct ones).
The product of its digits is 302400, while the sum is 44.
The square root of 87692525 is about 9364.4287065469. The cubic root of 87692525 is about 444.2773694350.
The spelling of 87692525 in words is "eighty-seven million, six hundred ninety-two thousand, five hundred twenty-five".
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