Base | Representation |
---|---|
bin | 1010011001010… |
… | …01101111110001 |
3 | 20002002100202101 |
4 | 11030221233301 |
5 | 134310442201 |
6 | 12353020401 |
7 | 2106132400 |
oct | 514515761 |
9 | 202070671 |
10 | 87202801 |
11 | 45250834 |
12 | 25254701 |
13 | 150b29ba |
14 | b81d637 |
15 | 79c7d01 |
hex | 5329bf1 |
87202801 has 6 divisors (see below), whose sum is σ = 101440050. Its totient is φ = 74745216.
The previous prime is 87202793. The next prime is 87202847. The reversal of 87202801 is 10820278.
It can be written as a sum of positive squares in only one way, i.e., 85377600 + 1825201 = 9240^2 + 1351^2 .
It is not a de Polignac number, because 87202801 - 23 = 87202793 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 87202801.
It is not an unprimeable number, because it can be changed into a prime (87202201) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 889776 + ... + 889873.
It is an arithmetic number, because the mean of its divisors is an integer number (16906675).
Almost surely, 287202801 is an apocalyptic number.
It is an amenable number.
87202801 is a deficient number, since it is larger than the sum of its proper divisors (14237249).
87202801 is a wasteful number, since it uses less digits than its factorization.
87202801 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1779663 (or 1779656 counting only the distinct ones).
The product of its (nonzero) digits is 1792, while the sum is 28.
The square root of 87202801 is about 9338.2439998107. The cubic root of 87202801 is about 443.4487941806.
The spelling of 87202801 in words is "eighty-seven million, two hundred two thousand, eight hundred one".
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