Base | Representation |
---|---|
bin | 1010101110110… |
… | …11111111010100 |
3 | 20021101222222210 |
4 | 11113123333110 |
5 | 141021430121 |
6 | 12533353420 |
7 | 2142146145 |
oct | 527337724 |
9 | 207358883 |
10 | 90030036 |
11 | 46901998 |
12 | 26198870 |
13 | 15862815 |
14 | bd57acc |
15 | 7d85876 |
hex | 55dbfd4 |
90030036 has 24 divisors (see below), whose sum is σ = 217314720. Its totient is φ = 28975072.
The previous prime is 90030029. The next prime is 90030049. The reversal of 90030036 is 63003009.
It is a super-2 number, since 2×900300362 = 16210814764322592, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 90029994 and 90030021.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129006 + ... + 129701.
It is an arithmetic number, because the mean of its divisors is an integer number (9054780).
Almost surely, 290030036 is an apocalyptic number.
It is an amenable number.
90030036 is an abundant number, since it is smaller than the sum of its proper divisors (127284684).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
90030036 is a wasteful number, since it uses less digits than its factorization.
90030036 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 258743 (or 258741 counting only the distinct ones).
The product of its (nonzero) digits is 486, while the sum is 21.
The square root of 90030036 is about 9488.4158846459. The cubic root of 90030036 is about 448.1903222490.
It can be divided in two parts, 9003003 and 6, that added together give a palindrome (9003009).
The spelling of 90030036 in words is "ninety million, thirty thousand, thirty-six".
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