Base | Representation |
---|---|
bin | 1010101110110… |
… | …00001011011111 |
3 | 20021101012120211 |
4 | 11113120023133 |
5 | 141020430211 |
6 | 12533153251 |
7 | 2142052513 |
oct | 527301337 |
9 | 207335524 |
10 | 90014431 |
11 | 468a11a1 |
12 | 2618b827 |
13 | 158586a0 |
14 | bd52143 |
15 | 7d80e21 |
hex | 55d82df |
90014431 has 8 divisors (see below), whose sum is σ = 97174784. Its totient is φ = 82887840.
The previous prime is 90014401. The next prime is 90014459. The reversal of 90014431 is 13441009.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 90014431 - 221 = 87917279 is a prime.
It is a super-2 number, since 2×900144312 = 16205195576507522, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (90014401) 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, 2751 + ... + 13696.
It is an arithmetic number, because the mean of its divisors is an integer number (12146848).
Almost surely, 290014431 is an apocalyptic number.
90014431 is a deficient number, since it is larger than the sum of its proper divisors (7160353).
90014431 is a wasteful number, since it uses less digits than its factorization.
90014431 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 16881.
The product of its (nonzero) digits is 432, while the sum is 22.
The square root of 90014431 is about 9487.5935305008. The cubic root of 90014431 is about 448.1644256541.
The spelling of 90014431 in words is "ninety million, fourteen thousand, four hundred thirty-one".
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