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28838054 = 272059861
BaseRepresentation
bin110111000000…
…0100010100110
32000021010101002
41232000202212
524340304204
62510033302
7500055650
oct156004246
960233332
1028838054
1115307503
1297a8832
135c8914b
143b896d0
1527e991e
hex1b808a6

28838054 has 8 divisors (see below), whose sum is σ = 49436688. Its totient is φ = 12359160.

The previous prime is 28838053. The next prime is 28838057. The reversal of 28838054 is 45083882.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 28837999 and 28838017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28838053) 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, 1029917 + ... + 1029944.

It is an arithmetic number, because the mean of its divisors is an integer number (6179586).

Almost surely, 228838054 is an apocalyptic number.

28838054 is a deficient number, since it is larger than the sum of its proper divisors (20598634).

28838054 is a wasteful number, since it uses less digits than its factorization.

28838054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2059870.

The product of its (nonzero) digits is 61440, while the sum is 38.

The square root of 28838054 is about 5370.1074477146. The cubic root of 28838054 is about 306.6587188131.

The spelling of 28838054 in words is "twenty-eight million, eight hundred thirty-eight thousand, fifty-four".

Divisors: 1 2 7 14 2059861 4119722 14419027 28838054