Base | Representation |
---|---|
bin | 1010101101111… |
… | …11111001111111 |
3 | 20021012011012110 |
4 | 11112333321333 |
5 | 141004240012 |
6 | 12531105103 |
7 | 2141156610 |
oct | 526777177 |
9 | 207164173 |
10 | 89915007 |
11 | 46833526 |
12 | 26142193 |
13 | 15822360 |
14 | bd27c07 |
15 | 7d6173c |
hex | 55bfe7f |
89915007 has 32 divisors (see below), whose sum is σ = 148115968. Its totient is φ = 47246976.
The previous prime is 89914991. The next prime is 89915053. The reversal of 89915007 is 70051998.
It is a happy number.
It is not a de Polignac number, because 89915007 - 24 = 89914991 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (39).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (89911007) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 101388 + ... + 102270.
It is an arithmetic number, because the mean of its divisors is an integer number (4628624).
Almost surely, 289915007 is an apocalyptic number.
89915007 is a deficient number, since it is larger than the sum of its proper divisors (58200961).
89915007 is a wasteful number, since it uses less digits than its factorization.
89915007 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1279.
The product of its (nonzero) digits is 22680, while the sum is 39.
The square root of 89915007 is about 9482.3523980076. The cubic root of 89915007 is about 447.9993605832. Note that the first 3 decimals are identical.
The spelling of 89915007 in words is "eighty-nine million, nine hundred fifteen thousand, seven".
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