Base | Representation |
---|---|
bin | 1010110101100… |
… | …10010111101101 |
3 | 20100001121112012 |
4 | 11122302113231 |
5 | 141233030031 |
6 | 13004251005 |
7 | 2152464212 |
oct | 532622755 |
9 | 210047465 |
10 | 90908141 |
11 | 473516a5 |
12 | 26540a65 |
13 | 15aac3cc |
14 | c105b09 |
15 | 7eaab2b |
hex | 56b25ed |
90908141 has 8 divisors (see below), whose sum is σ = 97005120. Its totient is φ = 84942432.
The previous prime is 90908113. The next prime is 90908143. The reversal of 90908141 is 14180909.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-90908141 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 90908098 and 90908107.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (90908143) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31385 + ... + 34158.
It is an arithmetic number, because the mean of its divisors is an integer number (12125640).
Almost surely, 290908141 is an apocalyptic number.
It is an amenable number.
90908141 is a deficient number, since it is larger than the sum of its proper divisors (6096979).
90908141 is a wasteful number, since it uses less digits than its factorization.
90908141 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 65635.
The product of its (nonzero) digits is 2592, while the sum is 32.
The square root of 90908141 is about 9534.5760786728. The cubic root of 90908141 is about 449.6427469060.
The spelling of 90908141 in words is "ninety million, nine hundred eight thousand, one hundred forty-one".
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