Base | Representation |
---|---|
bin | 1010101000111… |
… | …01100011101111 |
3 | 20012221101000201 |
4 | 11110131203233 |
5 | 140322000111 |
6 | 12504534331 |
7 | 2132420113 |
oct | 524354357 |
9 | 205841021 |
10 | 89250031 |
11 | 46419962 |
12 | 25a813a7 |
13 | 1564b790 |
14 | bbd3743 |
15 | 7c7e6c1 |
hex | 551d8ef |
89250031 has 8 divisors (see below), whose sum is σ = 98713664. Its totient is φ = 80157600.
The previous prime is 89249987. The next prime is 89250037. The reversal of 89250031 is 13005298.
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 89250031 - 225 = 55695599 is a prime.
It is a super-3 number, since 3×892500313 (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (89250037) 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, 92295 + ... + 93256.
It is an arithmetic number, because the mean of its divisors is an integer number (12339208).
Almost surely, 289250031 is an apocalyptic number.
89250031 is a deficient number, since it is larger than the sum of its proper divisors (9463633).
89250031 is a wasteful number, since it uses less digits than its factorization.
89250031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 185601.
The product of its (nonzero) digits is 2160, while the sum is 28.
The square root of 89250031 is about 9447.2234545394. The cubic root of 89250031 is about 446.8922177727.
The spelling of 89250031 in words is "eighty-nine million, two hundred fifty thousand, thirty-one".
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