Base | Representation |
---|---|
bin | 101000101101010101… |
… | …0100110000111010111 |
3 | 22100122111000120120101 |
4 | 1101122222212013113 |
5 | 2413014114232102 |
6 | 104054351514531 |
7 | 6213234443140 |
oct | 1213252460727 |
9 | 270574016511 |
10 | 87420461527 |
11 | 34090631713 |
12 | 14b38b28a47 |
13 | 8322594859 |
14 | 43344a4ac7 |
15 | 2419b8de87 |
hex | 145aaa61d7 |
87420461527 has 16 divisors (see below), whose sum is σ = 102359220480. Its totient is φ = 73098551232.
The previous prime is 87420461509. The next prime is 87420461567. The reversal of 87420461527 is 72516402478.
It is not a de Polignac number, because 87420461527 - 219 = 87419937239 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87420461507) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64008 + ... + 423010.
It is an arithmetic number, because the mean of its divisors is an integer number (6397451280).
Almost surely, 287420461527 is an apocalyptic number.
87420461527 is a deficient number, since it is larger than the sum of its proper divisors (14938758953).
87420461527 is a wasteful number, since it uses less digits than its factorization.
87420461527 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 359862.
The product of its (nonzero) digits is 752640, while the sum is 46.
The spelling of 87420461527 in words is "eighty-seven billion, four hundred twenty million, four hundred sixty-one thousand, five hundred twenty-seven".
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