Base | Representation |
---|---|
bin | 1010011010100… |
… | …11010000000111 |
3 | 20002101222221220 |
4 | 11031103100013 |
5 | 134331412212 |
6 | 12400411423 |
7 | 2110441134 |
oct | 515232007 |
9 | 202358856 |
10 | 87372807 |
11 | 45357535 |
12 | 25316b73 |
13 | 151421b2 |
14 | b86558b |
15 | 7a0d38c |
hex | 5353407 |
87372807 has 4 divisors (see below), whose sum is σ = 116497080. Its totient is φ = 58248536.
The previous prime is 87372797. The next prime is 87372823. The reversal of 87372807 is 70827378.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 87372807 - 26 = 87372743 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87372827) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14562132 + ... + 14562137.
It is an arithmetic number, because the mean of its divisors is an integer number (29124270).
Almost surely, 287372807 is an apocalyptic number.
87372807 is a deficient number, since it is larger than the sum of its proper divisors (29124273).
87372807 is a wasteful number, since it uses less digits than its factorization.
87372807 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 29124272.
The product of its (nonzero) digits is 131712, while the sum is 42.
The square root of 87372807 is about 9347.3422425843. The cubic root of 87372807 is about 443.7367819378.
The spelling of 87372807 in words is "eighty-seven million, three hundred seventy-two thousand, eight hundred seven".
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