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30216054 = 23112232053
BaseRepresentation
bin111001101000…
…0111101110110
32002212010122010
41303100331312
530213403204
62555345050
7514555311
oct163207566
962763563
1030216054
1116068850
12a152186
13634c42b
144027978
1529bcd89
hex1cd0f76

30216054 has 32 divisors (see below), whose sum is σ = 66253824. Its totient is φ = 9110880.

The previous prime is 30216049. The next prime is 30216077. The reversal of 30216054 is 45061203.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 30216054.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13692 + ... + 15744.

It is an arithmetic number, because the mean of its divisors is an integer number (2070432).

Almost surely, 230216054 is an apocalyptic number.

30216054 is an abundant number, since it is smaller than the sum of its proper divisors (36037770).

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

30216054 is a wasteful number, since it uses less digits than its factorization.

30216054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2292.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 30216054 is about 5496.9131337506. The cubic root of 30216054 is about 311.4673893001.

Adding to 30216054 its reverse (45061203), we get a palindrome (75277257).

The spelling of 30216054 in words is "thirty million, two hundred sixteen thousand, fifty-four".

Divisors: 1 2 3 6 11 22 33 66 223 446 669 1338 2053 2453 4106 4906 6159 7359 12318 14718 22583 45166 67749 135498 457819 915638 1373457 2746914 5036009 10072018 15108027 30216054