Base | Representation |
---|---|
bin | 101000111011000010… |
… | …0011110100000000100 |
3 | 22101211112011021121021 |
4 | 1101312010132200010 |
5 | 2414434314342131 |
6 | 104212134200524 |
7 | 6230516431522 |
oct | 1216604364004 |
9 | 271745137537 |
10 | 87880230916 |
11 | 342a7110215 |
12 | 15046ab3144 |
13 | 839690214a |
14 | 4379587312 |
15 | 244520be11 |
hex | 147611e804 |
87880230916 has 27 divisors (see below), whose sum is σ = 163387784469. Its totient is φ = 41350659648.
The previous prime is 87880230913. The next prime is 87880230931. The reversal of 87880230916 is 61903208878.
The square root of 87880230916 is 296446.
It is a perfect power (a square), and thus also a powerful number.
It can be written as a sum of positive squares in only one way, i.e., 68418864900 + 19461366016 = 261570^2 + 139504^2 .
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (87880230913) by changing a digit.
It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 10074805 + ... + 10083523.
Almost surely, 287880230916 is an apocalyptic number.
87880230916 is the 296446-th square number.
It is an amenable number.
87880230916 is a deficient number, since it is larger than the sum of its proper divisors (75507553553).
87880230916 is an frugal number, since it uses more digits than its factorization.
87880230916 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 17476 (or 8738 counting only the distinct ones).
The product of its (nonzero) digits is 1161216, while the sum is 52.
The spelling of 87880230916 in words is "eighty-seven billion, eight hundred eighty million, two hundred thirty thousand, nine hundred sixteen".
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