Base | Representation |
---|---|
bin | 1010011101000… |
… | …11010101000001 |
3 | 20010000122212211 |
4 | 11032203111001 |
5 | 134422411201 |
6 | 12411422121 |
7 | 2113305316 |
oct | 516432501 |
9 | 203018784 |
10 | 87700801 |
11 | 45560a01 |
12 | 25454941 |
13 | 15228586 |
14 | b90cd0d |
15 | 7a75651 |
hex | 53a3541 |
87700801 has 2 divisors, whose sum is σ = 87700802. Its totient is φ = 87700800.
The previous prime is 87700787. The next prime is 87700831. The reversal of 87700801 is 10800778.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 57395776 + 30305025 = 7576^2 + 5505^2 .
It is a cyclic number.
It is not a de Polignac number, because 87700801 - 225 = 54146369 is a prime.
It is a Chen prime.
It is equal to p5091466 and since 87700801 and 5091466 have the same sum of digits, it is a Honaker prime.
It is not a weakly prime, because it can be changed into another prime (87700831) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43850400 + 43850401.
It is an arithmetic number, because the mean of its divisors is an integer number (43850401).
Almost surely, 287700801 is an apocalyptic number.
It is an amenable number.
87700801 is a deficient number, since it is larger than the sum of its proper divisors (1).
87700801 is an equidigital number, since it uses as much as digits as its factorization.
87700801 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 3136, while the sum is 31.
The square root of 87700801 is about 9364.8705810598. The cubic root of 87700801 is about 444.2913452513.
The spelling of 87700801 in words is "eighty-seven million, seven hundred thousand, eight hundred one".
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