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28641094 = 2195314221
BaseRepresentation
bin110110101000…
…0011101000110
31222220010012021
41231100131012
524313003334
62501513354
7465305506
oct155203506
958803167
1028641094
1115192529
12971285a
135c1a5c1
143b37a06
1527ab3b4
hex1b50746

28641094 has 16 divisors (see below), whose sum is σ = 46079280. Its totient is φ = 13309920.

The previous prime is 28641079. The next prime is 28641097. The reversal of 28641094 is 49014682.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28641097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5097 + ... + 9124.

It is an arithmetic number, because the mean of its divisors is an integer number (2879955).

Almost surely, 228641094 is an apocalyptic number.

28641094 is a deficient number, since it is larger than the sum of its proper divisors (17438186).

28641094 is a wasteful number, since it uses less digits than its factorization.

28641094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14295.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 28641094 is about 5351.7374748767. The cubic root of 28641094 is about 305.9589775130.

The spelling of 28641094 in words is "twenty-eight million, six hundred forty-one thousand, ninety-four".

Divisors: 1 2 19 38 53 106 1007 2014 14221 28442 270199 540398 753713 1507426 14320547 28641094