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26364140 = 22511293409
BaseRepresentation
bin110010010010…
…0100011101100
31211121102210122
41210210203230
523222123030
62341024112
7440043245
oct144444354
954542718
1026364140
1113977850
1289b5038
1356010aa
143703ccc
1524ab8e5
hex19248ec

26364140 has 48 divisors (see below), whose sum is σ = 60752160. Its totient is φ = 9530880.

The previous prime is 26364137. The next prime is 26364193. The reversal of 26364140 is 4146362.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 64256 + ... + 64664.

It is an arithmetic number, because the mean of its divisors is an integer number (1265670).

Almost surely, 226364140 is an apocalyptic number.

26364140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26364140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30376080).

26364140 is an abundant number, since it is smaller than the sum of its proper divisors (34388020).

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

26364140 is a wasteful number, since it uses less digits than its factorization.

26364140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722 (or 720 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 26364140 is about 5134.6022241260. The cubic root of 26364140 is about 297.6262298874.

It can be divided in two parts, 2636 and 4140, that added together give a palindrome (6776).

The spelling of 26364140 in words is "twenty-six million, three hundred sixty-four thousand, one hundred forty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 293 409 586 818 1172 1465 1636 2045 2930 3223 4090 4499 5860 6446 8180 8998 12892 16115 17996 22495 32230 44990 64460 89980 119837 239674 479348 599185 1198370 1318207 2396740 2636414 5272828 6591035 13182070 26364140