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26568144 = 24321710853
BaseRepresentation
bin110010101011…
…0010111010000
31211222210122100
41211112113100
523300140034
62345240400
7441553101
oct145262720
954883570
1026568144
1113aa7049
128a93100
135672bc5
1437583a8
1524ec099
hex19565d0

26568144 has 60 divisors (see below), whose sum is σ = 78734916. Its totient is φ = 8334336.

The previous prime is 26568119. The next prime is 26568149. The reversal of 26568144 is 44186562.

It can be written as a sum of positive squares in 2 ways, for example, as 17640000 + 8928144 = 4200^2 + 2988^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 26568099 and 26568108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26568149) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2979 + ... + 7874.

Almost surely, 226568144 is an apocalyptic number.

26568144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

26568144 is an abundant number, since it is smaller than the sum of its proper divisors (52166772).

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

26568144 is a wasteful number, since it uses less digits than its factorization.

26568144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10884 (or 10875 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 26568144 is about 5154.4295513665. The cubic root of 26568144 is about 298.3919290943.

The spelling of 26568144 in words is "twenty-six million, five hundred sixty-eight thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 8 9 12 16 17 18 24 34 36 48 51 68 72 102 136 144 153 204 272 306 408 612 816 1224 2448 10853 21706 32559 43412 65118 86824 97677 130236 173648 184501 195354 260472 369002 390708 520944 553503 738004 781416 1107006 1476008 1562832 1660509 2214012 2952016 3321018 4428024 6642036 8856048 13284072 26568144