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309054 = 23192711
BaseRepresentation
bin1001011011100111110
3120200221110
41023130332
534342204
610342450
72425014
oct1133476
9520843
10309054
111a1219
1212aa26
13aa895
14808b4
1561889
hex4b73e

309054 has 16 divisors (see below), whose sum is σ = 650880. Its totient is φ = 97560.

The previous prime is 309037. The next prime is 309059. The reversal of 309054 is 450903.

309054 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 309054.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 309054.

It is not an unprimeable number, because it can be changed into a prime (309059) by changing a digit.

309054 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1242 + ... + 1469.

It is an arithmetic number, because the mean of its divisors is an integer number (40680).

2309054 is an apocalyptic number.

309054 is an abundant number, since it is smaller than the sum of its proper divisors (341826).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

309054 is a wasteful number, since it uses less digits than its factorization.

309054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2735.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 309054 is about 555.9262541021. The cubic root of 309054 is about 67.6100810100.

Adding to 309054 its reverse (450903), we get a palindrome (759957).

The spelling of 309054 in words is "three hundred nine thousand, fifty-four".

Divisors: 1 2 3 6 19 38 57 114 2711 5422 8133 16266 51509 103018 154527 309054