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28326753 = 36721361
BaseRepresentation
bin110110000001…
…1101101100001
31222022011000000
41230003231201
524222424003
62451050213
7462526200
oct154035541
958264000
1028326753
1114a98344
1295a0969
135b3a4c0
143a95237
1527481a3
hex1b03b61

28326753 has 84 divisors (see below), whose sum is σ = 54077268. Its totient is φ = 14696640.

The previous prime is 28326737. The next prime is 28326769. The reversal of 28326753 is 35762382.

It is an interprime number because it is at equal distance from previous prime (28326737) and next prime (28326769).

It can be written as a sum of positive squares in 2 ways, for example, as 2286144 + 26040609 = 1512^2 + 5103^2 .

It is not a de Polignac number, because 28326753 - 24 = 28326737 is a prime.

Its product of digits (60480) is a multiple of the sum of its prime divisors (84).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28326713) by changing a digit.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 464343 + ... + 464403.

It is an arithmetic number, because the mean of its divisors is an integer number (643777).

Almost surely, 228326753 is an apocalyptic number.

It is an amenable number.

28326753 is a deficient number, since it is larger than the sum of its proper divisors (25750515).

28326753 is an equidigital number, since it uses as much as digits as its factorization.

28326753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106 (or 84 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 28326753 is about 5322.2883236443. The cubic root of 28326753 is about 304.8355397520.

The spelling of 28326753 in words is "twenty-eight million, three hundred twenty-six thousand, seven hundred fifty-three".

Divisors: 1 3 7 9 13 21 27 39 49 61 63 81 91 117 147 183 189 243 273 351 427 441 549 567 637 729 793 819 1053 1281 1323 1647 1701 1911 2379 2457 2989 3159 3843 3969 4941 5103 5551 5733 7137 7371 8967 9477 11529 11907 14823 16653 17199 21411 22113 26901 34587 35721 38857 44469 49959 51597 64233 66339 80703 103761 116571 149877 154791 192699 242109 311283 349713 449631 464373 578097 726327 1049139 1348893 2178981 3147417 4046679 9442251 28326753