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26827164 = 223271319431
BaseRepresentation
bin110011001010…
…1100110011100
31212110221221200
41212111212130
523331432124
62354555500
7444012210
oct146254634
955427850
1026827164
1114163711
128b98b90
135733a80
1437c4940
15254dbc9
hex199599c

26827164 has 144 divisors (see below), whose sum is σ = 88058880. Its totient is φ = 6687360.

The previous prime is 26827153. The next prime is 26827187. The reversal of 26827164 is 46172862.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 62029 + ... + 62459.

It is an arithmetic number, because the mean of its divisors is an integer number (611520).

Almost surely, 226827164 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26827164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44029440).

26827164 is an abundant number, since it is smaller than the sum of its proper divisors (61231716).

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

26827164 is a wasteful number, since it uses less digits than its factorization.

26827164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480 (or 475 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 26827164 is about 5179.4945699363. The cubic root of 26827164 is about 299.3584958860.

The spelling of 26827164 in words is "twenty-six million, eight hundred twenty-seven thousand, one hundred sixty-four".

Divisors: 1 2 3 4 6 7 9 12 13 14 18 19 21 26 28 36 38 39 42 52 57 63 76 78 84 91 114 117 126 133 156 171 182 228 234 247 252 266 273 342 364 399 431 468 494 532 546 684 741 798 819 862 988 1092 1197 1293 1482 1596 1638 1724 1729 2223 2394 2586 2964 3017 3276 3458 3879 4446 4788 5172 5187 5603 6034 6916 7758 8189 8892 9051 10374 11206 12068 15516 15561 16378 16809 18102 20748 22412 24567 27153 31122 32756 33618 36204 39221 49134 50427 54306 57323 62244 67236 73701 78442 98268 100854 106457 108612 114646 117663 147402 156884 171969 201708 212914 229292 235326 294804 319371 343938 352989 425828 470652 515907 638742 687876 705978 745199 958113 1031814 1277484 1411956 1490398 1916226 2063628 2235597 2980796 3832452 4471194 6706791 8942388 13413582 26827164