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28662414 = 23113114009
BaseRepresentation
bin110110101010…
…1101010001110
31222221012102220
41231111222032
524314144124
62502200210
7465424614
oct155255216
958835386
1028662414
11151a7550
129723066
135c27211
143b416b4
1527b2879
hex1b55a8e

28662414 has 32 divisors (see below), whose sum is σ = 64558080. Its totient is φ = 8404800.

The previous prime is 28662401. The next prime is 28662419. The reversal of 28662414 is 41426682.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28662419) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4959 + ... + 9050.

It is an arithmetic number, because the mean of its divisors is an integer number (2017440).

Almost surely, 228662414 is an apocalyptic number.

28662414 is an abundant number, since it is smaller than the sum of its proper divisors (35895666).

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

28662414 is a wasteful number, since it uses less digits than its factorization.

28662414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14056.

The product of its digits is 18432, while the sum is 33.

The square root of 28662414 is about 5353.7289808133. The cubic root of 28662414 is about 306.0348757721.

The spelling of 28662414 in words is "twenty-eight million, six hundred sixty-two thousand, four hundred fourteen".

Divisors: 1 2 3 6 11 22 31 33 62 66 93 186 341 682 1023 2046 14009 28018 42027 84054 154099 308198 434279 462297 868558 924594 1302837 2605674 4777069 9554138 14331207 28662414