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26828677092 = 223717157111959
BaseRepresentation
bin11000111111000111…
…010001111111100100
32120020201220000012010
4120333013101333210
5414421120131332
620154103354220
71636560664320
oct307707217744
976221800163
1026828677092
11104180a8208
125248a52970
1326b7357379
1414271a6980
15a704e29cc
hex63f1d1fe4

26828677092 has 96 divisors (see below), whose sum is σ = 75806115840. Its totient is φ = 7209239040.

The previous prime is 26828677091. The next prime is 26828677133. The reversal of 26828677092 is 29077682862.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (26828677091) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2237409 + ... + 2249367.

It is an arithmetic number, because the mean of its divisors is an integer number (789647040).

Almost surely, 226828677092 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 26828677092, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37903057920).

26828677092 is an abundant number, since it is smaller than the sum of its proper divisors (48977438748).

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

26828677092 is a wasteful number, since it uses less digits than its factorization.

26828677092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13561 (or 13559 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 57.

The spelling of 26828677092 in words is "twenty-six billion, eight hundred twenty-eight million, six hundred seventy-seven thousand, ninety-two".

Divisors: 1 2 3 4 6 7 12 14 17 21 28 34 42 51 68 84 102 119 204 238 357 476 714 1428 1571 3142 4713 6284 9426 10997 11959 18852 21994 23918 26707 32991 35877 43988 47836 53414 65982 71754 80121 83713 106828 131964 143508 160242 167426 186949 203303 251139 320484 334852 373898 406606 502278 560847 609909 747796 813212 1004556 1121694 1219818 1423121 2243388 2439636 2846242 4269363 5692484 8538726 17077452 18787589 37575178 56362767 75150356 112725534 131513123 225451068 263026246 319389013 394539369 526052492 638778026 789078738 958167039 1277556052 1578157476 1916334078 2235723091 3832668156 4471446182 6707169273 8942892364 13414338546 26828677092