Base | Representation |
---|---|
bin | 1000001110101… |
… | …10000000000011 |
3 | 11210220021211100 |
4 | 10013112000003 |
5 | 120133041422 |
6 | 10503345443 |
7 | 1465531161 |
oct | 407260003 |
9 | 153807740 |
10 | 69033987 |
11 | 35a71290 |
12 | 1b152283 |
13 | 113c0c19 |
14 | 9250231 |
15 | 60d97ac |
hex | 41d6003 |
69033987 has 24 divisors (see below), whose sum is σ = 109631808. Its totient is φ = 41511600.
The previous prime is 69033967. The next prime is 69033989. The reversal of 69033987 is 78933096.
It is a happy number.
It is not a de Polignac number, because 69033987 - 216 = 68968451 is a prime.
It is a super-2 number, since 2×690339872 = 9531382722232338, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (69033989) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10308 + ... + 15630.
It is an arithmetic number, because the mean of its divisors is an integer number (4567992).
Almost surely, 269033987 is an apocalyptic number.
69033987 is a deficient number, since it is larger than the sum of its proper divisors (40597821).
69033987 is a wasteful number, since it uses less digits than its factorization.
69033987 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5471 (or 5468 counting only the distinct ones).
The product of its (nonzero) digits is 244944, while the sum is 45.
The square root of 69033987 is about 8308.6693880549. The cubic root of 69033987 is about 410.2239248735.
The spelling of 69033987 in words is "sixty-nine million, thirty-three thousand, nine hundred eighty-seven".
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