Base | Representation |
---|---|
bin | 11011110011000100000010 |
3 | 111201012221110 |
4 | 123303010002 |
5 | 3331141132 |
6 | 420104150 |
7 | 115640010 |
oct | 33630402 |
9 | 14635843 |
10 | 7287042 |
11 | 4127954 |
12 | 2535056 |
13 | 1681a79 |
14 | d798b0 |
15 | 98e1cc |
hex | 6f3102 |
7287042 has 16 divisors (see below), whose sum is σ = 16656192. Its totient is φ = 2082000.
The previous prime is 7287037. The next prime is 7287043. The reversal of 7287042 is 2407827.
It is a super-2 number, since 2×72870422 = 106201962219528, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (7287043) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86709 + ... + 86792.
It is an arithmetic number, because the mean of its divisors is an integer number (1041012).
Almost surely, 27287042 is an apocalyptic number.
7287042 is an abundant number, since it is smaller than the sum of its proper divisors (9369150).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
7287042 is a wasteful number, since it uses less digits than its factorization.
7287042 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 173513.
The product of its (nonzero) digits is 6272, while the sum is 30.
The square root of 7287042 is about 2699.4521666442. The cubic root of 7287042 is about 193.8728929673.
The spelling of 7287042 in words is "seven million, two hundred eighty-seven thousand, forty-two".
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