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28426524 = 2237338411
BaseRepresentation
bin110110001110…
…0000100011100
31222111012212020
41230130010130
524234122044
62453140140
7463423110
oct154340434
958435766
1028426524
11150562a5
12962a650
135b73a39
143abd740
152767a19
hex1b1c11c

28426524 has 24 divisors (see below), whose sum is σ = 75804288. Its totient is φ = 8121840.

The previous prime is 28426523. The next prime is 28426547. The reversal of 28426524 is 42562482.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28426523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169122 + ... + 169289.

It is an arithmetic number, because the mean of its divisors is an integer number (3158512).

Almost surely, 228426524 is an apocalyptic number.

It is an amenable number.

28426524 is an abundant number, since it is smaller than the sum of its proper divisors (47377764).

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

28426524 is a wasteful number, since it uses less digits than its factorization.

28426524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338425 (or 338423 counting only the distinct ones).

The product of its digits is 30720, while the sum is 33.

The square root of 28426524 is about 5331.6530269702. The cubic root of 28426524 is about 305.1930122929.

The spelling of 28426524 in words is "twenty-eight million, four hundred twenty-six thousand, five hundred twenty-four".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 338411 676822 1015233 1353644 2030466 2368877 4060932 4737754 7106631 9475508 14213262 28426524