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26996320 = 2551312979
BaseRepresentation
bin110011011111…
…0111001100000
31212210112222201
41212332321200
523402340240
62402342544
7445315321
oct146767140
955715881
1026996320
111426980a
12905aa54
135792a70
14382a448
152583d9a
hex19bee60

26996320 has 48 divisors (see below), whose sum is σ = 68690160. Its totient is φ = 9967104.

The previous prime is 26996317. The next prime is 26996329. The reversal of 26996320 is 2369962.

It is a self number, because there is not a number n which added to its sum of digits gives 26996320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26996329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4410 + ... + 8569.

It is an arithmetic number, because the mean of its divisors is an integer number (1431045).

Almost surely, 226996320 is an apocalyptic number.

26996320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26996320 is an abundant number, since it is smaller than the sum of its proper divisors (41693840).

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

26996320 is a wasteful number, since it uses less digits than its factorization.

26996320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13007 (or 12999 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 37.

The square root of 26996320 is about 5195.7983024748. The cubic root of 26996320 is about 299.9863697511.

The spelling of 26996320 in words is "twenty-six million, nine hundred ninety-six thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 13 16 20 26 32 40 52 65 80 104 130 160 208 260 416 520 1040 2080 12979 25958 51916 64895 103832 129790 168727 207664 259580 337454 415328 519160 674908 843635 1038320 1349816 1687270 2076640 2699632 3374540 5399264 6749080 13498160 26996320