Base | Representation |
---|---|
bin | 101010000001100000… |
… | …1011100011001100010 |
3 | 22121221022221011221111 |
4 | 1110003001130121202 |
5 | 2434310211221310 |
6 | 105242532013534 |
7 | 6343233020200 |
oct | 1240301343142 |
9 | 277838834844 |
10 | 90245023330 |
11 | 352aaa65810 |
12 | 155a6a612aa |
13 | 86828116b7 |
14 | 4521680070 |
15 | 2532b2b28a |
hex | 150305c662 |
90245023330 has 192 divisors, whose sum is σ = 222292667520. Its totient is φ = 25996723200.
The previous prime is 90245023279. The next prime is 90245023361. The reversal of 90245023330 is 3332054209.
It is a junction number, because it is equal to n+sod(n) for n = 90245023292 and 90245023301.
It is an unprimeable number.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4188064 + ... + 4209556.
It is an arithmetic number, because the mean of its divisors is an integer number (1157774310).
Almost surely, 290245023330 is an apocalyptic number.
90245023330 is an abundant number, since it is smaller than the sum of its proper divisors (132047644190).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
90245023330 is a wasteful number, since it uses less digits than its factorization.
90245023330 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 21585 (or 21578 counting only the distinct ones).
The product of its (nonzero) digits is 19440, while the sum is 31.
Adding to 90245023330 its reverse (3332054209), we get a palindrome (93577077539).
The spelling of 90245023330 in words is "ninety billion, two hundred forty-five million, twenty-three thousand, three hundred thirty".
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