Base | Representation |
---|---|
bin | 111101011111100110100 |
3 | 10210101002200 |
4 | 13223330310 |
5 | 1003440103 |
6 | 111104500 |
7 | 23061501 |
oct | 7537464 |
9 | 3711080 |
10 | 2015028 |
11 | 1156a14 |
12 | 812130 |
13 | 557232 |
14 | 3a64a8 |
15 | 29c0a3 |
hex | 1ebf34 |
2015028 has 36 divisors (see below), whose sum is σ = 5136768. Its totient is φ = 666000.
The previous prime is 2015021. The next prime is 2015033. The reversal of 2015028 is 8205102.
2015028 is a nontrivial binomial coefficient, being equal to C(2008, 2).
It is a tau number, because it is divible by the number of its divisors (36).
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a self number, because there is not a number n which added to its sum of digits gives 2015028.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2015021) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7903 + ... + 8153.
It is an arithmetic number, because the mean of its divisors is an integer number (142688).
22015028 is an apocalyptic number.
2015028 is the 2007-th triangular number and also the 1004-th hexagonal number.
It is an amenable number.
2015028 is an abundant number, since it is smaller than the sum of its proper divisors (3121740).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2015028 is a wasteful number, since it uses less digits than its factorization.
2015028 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 484 (or 479 counting only the distinct ones).
The product of its (nonzero) digits is 160, while the sum is 18.
The square root of 2015028 is about 1419.5168192029. The cubic root of 2015028 is about 126.3068861049.
The spelling of 2015028 in words is "two million, fifteen thousand, twenty-eight".
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