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28054116 = 22321077283
BaseRepresentation
bin110101100000…
…1001001100100
31221210022000100
41223001021210
524140212431
62441144100
7460312266
oct153011144
957708010
1028054116
1114921522
12948b030
135a7338c
143a23b36
1526e24e6
hex1ac1264

28054116 has 36 divisors (see below), whose sum is σ = 71587152. Its totient is φ = 9262704.

The previous prime is 28054111. The next prime is 28054121. The reversal of 28054116 is 61145082.

It is an interprime number because it is at equal distance from previous prime (28054111) and next prime (28054121).

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 28054116.

It is not an unprimeable number, because it can be changed into a prime (28054111) 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, 211 + ... + 7493.

It is an arithmetic number, because the mean of its divisors is an integer number (1988532).

Almost surely, 228054116 is an apocalyptic number.

It is an amenable number.

28054116 is an abundant number, since it is smaller than the sum of its proper divisors (43533036).

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

28054116 is a wasteful number, since it uses less digits than its factorization.

28054116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7400 (or 7395 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 28054116 is about 5296.6136351446. The cubic root of 28054116 is about 303.8543999208.

Adding to 28054116 its reverse (61145082), we get a palindrome (89199198).

The spelling of 28054116 in words is "twenty-eight million, fifty-four thousand, one hundred sixteen".

Divisors: 1 2 3 4 6 9 12 18 36 107 214 321 428 642 963 1284 1926 3852 7283 14566 21849 29132 43698 65547 87396 131094 262188 779281 1558562 2337843 3117124 4675686 7013529 9351372 14027058 28054116