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549028 = 22294733
BaseRepresentation
bin10000110000010100100
31000220010101
42012002210
5120032103
615433444
74444444
oct2060244
91026111
10549028
11345547
12225884
13162b8c
14104124
15aca1d
hex860a4

549028 has 12 divisors (see below), whose sum is σ = 994140. Its totient is φ = 264992.

The previous prime is 549023. The next prime is 549037. The reversal of 549028 is 820945.

It is a happy number.

549028 is nontrivially palindromic in base 7.

It can be written as a sum of positive squares in 2 ways, for example, as 186624 + 362404 = 432^2 + 602^2 .

549028 is a nontrivial repdigit in base 7.

It is a plaindrome in base 7.

It is a nialpdrome in base 7.

It is a zygodrome in base 7.

It is a junction number, because it is equal to n+sod(n) for n = 548987 and 549005.

It is not an unprimeable number, because it can be changed into a prime (549023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2251 + ... + 2482.

It is an arithmetic number, because the mean of its divisors is an integer number (82845).

2549028 is an apocalyptic number.

549028 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is an amenable number.

549028 is a deficient number, since it is larger than the sum of its proper divisors (445112).

549028 is a wasteful number, since it uses less digits than its factorization.

549028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4766 (or 4764 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 549028 is about 740.9642366538. The cubic root of 549028 is about 81.8838331282.

The spelling of 549028 in words is "five hundred forty-nine thousand, twenty-eight".

Divisors: 1 2 4 29 58 116 4733 9466 18932 137257 274514 549028