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28492134 = 23111922721
BaseRepresentation
bin110110010110…
…0000101100110
31222121112212020
41230230011212
524243222014
62454404010
7464115306
oct154540546
958545766
1028492134
11150a0620
129660606
135b97868
143ad9606
15277c1a9
hex1b2c166

28492134 has 32 divisors (see below), whose sum is σ = 65439360. Its totient is φ = 8179200.

The previous prime is 28492129. The next prime is 28492141. The reversal of 28492134 is 43129482.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 28492095 and 28492104.

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, 10107 + ... + 12614.

It is an arithmetic number, because the mean of its divisors is an integer number (2044980).

Almost surely, 228492134 is an apocalyptic number.

28492134 is an abundant number, since it is smaller than the sum of its proper divisors (36947226).

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

28492134 is a wasteful number, since it uses less digits than its factorization.

28492134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22756.

The product of its digits is 13824, while the sum is 33.

The square root of 28492134 is about 5337.8023567757. The cubic root of 28492134 is about 305.4276327009.

The spelling of 28492134 in words is "twenty-eight million, four hundred ninety-two thousand, one hundred thirty-four".

Divisors: 1 2 3 6 11 19 22 33 38 57 66 114 209 418 627 1254 22721 45442 68163 136326 249931 431699 499862 749793 863398 1295097 1499586 2590194 4748689 9497378 14246067 28492134