Base | Representation |
---|---|
bin | 101010010010000111… |
… | …1111111110011001000 |
3 | 22200101011220020121112 |
4 | 1110210033333303020 |
5 | 2441430414031342 |
6 | 105414124225452 |
7 | 6363112254155 |
oct | 1244417776310 |
9 | 280334806545 |
10 | 90802486472 |
11 | 35566700055 |
12 | 1572169b288 |
13 | 8741165b49 |
14 | 457571322c |
15 | 2566a45682 |
hex | 15243ffcc8 |
90802486472 has 128 divisors (see below), whose sum is σ = 183367951200. Its totient is φ = 42085785600.
The previous prime is 90802486457. The next prime is 90802486487. The reversal of 90802486472 is 27468420809.
It is an interprime number because it is at equal distance from previous prime (90802486457) and next prime (90802486487).
It can be written as a sum of positive squares in 16 ways, for example, as 450543076 + 90351943396 = 21226^2 + 300586^2 .
It is a self number, because there is not a number n which added to its sum of digits gives 90802486472.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 128070854 + ... + 128071562.
Almost surely, 290802486472 is an apocalyptic number.
It is an amenable number.
90802486472 is an abundant number, since it is smaller than the sum of its proper divisors (92565464728).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
90802486472 is a wasteful number, since it uses less digits than its factorization.
90802486472 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1027 (or 1023 counting only the distinct ones).
The product of its (nonzero) digits is 1548288, while the sum is 50.
The spelling of 90802486472 in words is "ninety billion, eight hundred two million, four hundred eighty-six thousand, four hundred seventy-two".
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