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26828164272 = 2437138969011
BaseRepresentation
bin11000111111000101…
…010100110010110000
32120020200220221201210
4120333011110302300
5414421002224042
620154044400120
71636553430240
oct307705246260
976220827653
1026828164272
1110417887998
125248846040
1326b7207b20
1414270b1b20
15a70440a9c
hex63f154cb0

26828164272 has 160 divisors (see below), whose sum is σ = 86259479040. Its totient is φ = 6995957760.

The previous prime is 26828164213. The next prime is 26828164309. The reversal of 26828164272 is 27246182862.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 354247 + ... + 423257.

It is an arithmetic number, because the mean of its divisors is an integer number (539121744).

Almost surely, 226828164272 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 26828164272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43129739520).

26828164272 is an abundant number, since it is smaller than the sum of its proper divisors (59431314768).

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

26828164272 is a wasteful number, since it uses less digits than its factorization.

26828164272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69131 (or 69125 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 48.

The spelling of 26828164272 in words is "twenty-six billion, eight hundred twenty-eight million, one hundred sixty-four thousand, two hundred seventy-two".

Divisors: 1 2 3 4 6 7 8 12 13 14 16 21 24 26 28 39 42 48 52 56 78 84 89 91 104 112 156 168 178 182 208 267 273 312 336 356 364 534 546 623 624 712 728 1068 1092 1157 1246 1424 1456 1869 2136 2184 2314 2492 3471 3738 4272 4368 4628 4984 6942 7476 8099 9256 9968 13884 14952 16198 18512 24297 27768 29904 32396 48594 55536 64792 69011 97188 129584 138022 194376 207033 276044 388752 414066 483077 552088 828132 897143 966154 1104176 1449231 1656264 1794286 1932308 2691429 2898462 3312528 3588572 3864616 5382858 5796924 6141979 6280001 7177144 7729232 10765716 11593848 12283958 12560002 14354288 18425937 18840003 21531432 23187696 24567916 25120004 36851874 37680006 42993853 43062864 49135832 50240008 73703748 75360012 79845727 85987706 98271664 100480016 128981559 147407496 150720024 159691454 171975412 239537181 257963118 294814992 301440048 319382908 343950824 479074362 515926236 558920089 638765816 687901648 958148724 1031852472 1117840178 1277531632 1676760267 1916297448 2063704944 2235680356 3353520534 3832594896 4471360712 6707041068 8942721424 13414082136 26828164272