Base | Representation |
---|---|
bin | 101000111100011110… |
… | …0110000001000000111 |
3 | 22101221220001111220222 |
4 | 1101320330300020013 |
5 | 2420034201200412 |
6 | 104221021414555 |
7 | 6231644144411 |
oct | 1217074601007 |
9 | 271856044828 |
10 | 87928537607 |
11 | 343214047a9 |
12 | 1505b10a45b |
13 | 83a39168a1 |
14 | 4381b5d9b1 |
15 | 24495a0072 |
hex | 1478f30207 |
87928537607 has 2 divisors, whose sum is σ = 87928537608. Its totient is φ = 87928537606.
The previous prime is 87928537553. The next prime is 87928537621. The reversal of 87928537607 is 70673582978.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 87928537607 - 210 = 87928536583 is a prime.
It is a super-2 number, since 2×879285376072 (a number of 23 digits) contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 87928537607.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (87928537637) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43964268803 + 43964268804.
It is an arithmetic number, because the mean of its divisors is an integer number (43964268804).
Almost surely, 287928537607 is an apocalyptic number.
87928537607 is a deficient number, since it is larger than the sum of its proper divisors (1).
87928537607 is an equidigital number, since it uses as much as digits as its factorization.
87928537607 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 35562240, while the sum is 62.
The spelling of 87928537607 in words is "eighty-seven billion, nine hundred twenty-eight million, five hundred thirty-seven thousand, six hundred seven".
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