Base | Representation |
---|---|
bin | 1010101110011… |
… | …00110101000110 |
3 | 20021021211211000 |
4 | 11113030311012 |
5 | 141012433232 |
6 | 12532154130 |
7 | 2141500131 |
oct | 527146506 |
9 | 207254730 |
10 | 89967942 |
11 | 4686a279 |
12 | 26168946 |
13 | 1584048c |
14 | bd3d218 |
15 | 7d7227c |
hex | 55ccd46 |
89967942 has 48 divisors (see below), whose sum is σ = 205647120. Its totient is φ = 29154816.
The previous prime is 89967931. The next prime is 89967949. The reversal of 89967942 is 24976998.
It is a Harshad number since it is a multiple of its sum of digits (54).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (89967949) 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, 73318 + ... + 74534.
It is an arithmetic number, because the mean of its divisors is an integer number (4284315).
Almost surely, 289967942 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 89967942, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102823560).
89967942 is an abundant number, since it is smaller than the sum of its proper divisors (115679178).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
89967942 is a wasteful number, since it uses less digits than its factorization.
89967942 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1302 (or 1259 counting only the distinct ones).
The product of its digits is 1959552, while the sum is 54.
The square root of 89967942 is about 9485.1432250652. The cubic root of 89967942 is about 448.0872591244.
It can be divided in two parts, 89967 and 942, that added together give a palindrome (90909).
The spelling of 89967942 in words is "eighty-nine million, nine hundred sixty-seven thousand, nine hundred forty-two".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.071 sec. • engine limits •