Base | Representation |
---|---|
bin | 1010011000010… |
… | …10110100110001 |
3 | 20001211221000102 |
4 | 11030022310301 |
5 | 134242414040 |
6 | 12350202145 |
7 | 2105064212 |
oct | 514126461 |
9 | 201757012 |
10 | 87076145 |
11 | 45174662 |
12 | 251b3355 |
13 | 1506a160 |
14 | b7c9409 |
15 | 79a0515 |
hex | 530ad31 |
87076145 has 16 divisors (see below), whose sum is σ = 118453440. Its totient is φ = 60917184.
The previous prime is 87076139. The next prime is 87076151. The reversal of 87076145 is 54167078.
It is an interprime number because it is at equal distance from previous prime (87076139) and next prime (87076151).
It is a cyclic number.
It is not a de Polignac number, because 87076145 - 28 = 87075889 is a prime.
It is a super-2 number, since 2×870761452 = 15164510056122050, which contains 22 as substring.
It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is an alternating number because its digits alternate between even and odd.
It is a junction number, because it is equal to n+sod(n) for n = 87076099 and 87076108.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34019 + ... + 36488.
It is an arithmetic number, because the mean of its divisors is an integer number (7403340).
Almost surely, 287076145 is an apocalyptic number.
It is an amenable number.
87076145 is a deficient number, since it is larger than the sum of its proper divisors (31377295).
87076145 is a wasteful number, since it uses less digits than its factorization.
87076145 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 70544.
The product of its (nonzero) digits is 47040, while the sum is 38.
The square root of 87076145 is about 9331.4599607993. The cubic root of 87076145 is about 443.2339973166.
The spelling of 87076145 in words is "eighty-seven million, seventy-six thousand, one hundred forty-five".
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