Base | Representation |
---|---|
bin | 1010101100110… |
… | …01010111001011 |
3 | 20020220010122012 |
4 | 11112121113023 |
5 | 140434212011 |
6 | 12523450135 |
7 | 2136631412 |
oct | 526312713 |
9 | 206803565 |
10 | 89757131 |
11 | 46735952 |
12 | 2608694b |
13 | 15798539 |
14 | bcc6479 |
15 | 7d2ea8b |
hex | 55995cb |
89757131 has 4 divisors (see below), whose sum is σ = 89846064. Its totient is φ = 89668200.
The previous prime is 89757103. The next prime is 89757137. The reversal of 89757131 is 13175798.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13175798 = 2 ⋅6587899.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-89757131 is a prime.
It is a super-2 number, since 2×897571312 = 16112685130702322, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (89757137) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42935 + ... + 44976.
It is an arithmetic number, because the mean of its divisors is an integer number (22461516).
Almost surely, 289757131 is an apocalyptic number.
89757131 is a deficient number, since it is larger than the sum of its proper divisors (88933).
89757131 is a wasteful number, since it uses less digits than its factorization.
89757131 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 88932.
The product of its digits is 52920, while the sum is 41.
The square root of 89757131 is about 9474.0240130580. The cubic root of 89757131 is about 447.7370025125.
The spelling of 89757131 in words is "eighty-nine million, seven hundred fifty-seven thousand, one hundred thirty-one".
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