Base | Representation |
---|---|
bin | 1010100010100… |
… | …01001100110101 |
3 | 20011100211210212 |
4 | 11101101030311 |
5 | 140113203411 |
6 | 12434555205 |
7 | 2122332536 |
oct | 521211465 |
9 | 204324725 |
10 | 88412981 |
11 | 459a7a88 |
12 | 25738b05 |
13 | 15417797 |
14 | ba5668d |
15 | 7b6668b |
hex | 5451335 |
88412981 has 4 divisors (see below), whose sum is σ = 88519200. Its totient is φ = 88306764.
The previous prime is 88412959. The next prime is 88412983. The reversal of 88412981 is 18921488.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 88412981 - 26 = 88412917 is a prime.
It is a super-3 number, since 3×884129813 (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 (88412983) 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, 51851 + ... + 53528.
It is an arithmetic number, because the mean of its divisors is an integer number (22129800).
Almost surely, 288412981 is an apocalyptic number.
It is an amenable number.
88412981 is a deficient number, since it is larger than the sum of its proper divisors (106219).
88412981 is a wasteful number, since it uses less digits than its factorization.
88412981 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 106218.
The product of its digits is 36864, while the sum is 41.
The square root of 88412981 is about 9402.8177159828. The cubic root of 88412981 is about 445.4907366643.
The spelling of 88412981 in words is "eighty-eight million, four hundred twelve thousand, nine hundred eighty-one".
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