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26813331 = 3223129533
BaseRepresentation
bin110011001001…
…0001110010011
31212110020222100
41212102032103
523331011311
62354411443
7443623656
oct146221623
955406870
1026813331
1114154286
128b90b83
13572a69c
1437bd89d
152549a56
hex1992393

26813331 has 12 divisors (see below), whose sum is σ = 40414608. Its totient is φ = 17098224.

The previous prime is 26813329. The next prime is 26813341. The reversal of 26813331 is 13331862.

It is a happy number.

It is not a de Polignac number, because 26813331 - 21 = 26813329 is a prime.

It is a super-2 number, since 2×268133312 = 1437909438631122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 26813295 and 26813304.

It is not an unprimeable number, because it can be changed into a prime (26813341) 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, 64560 + ... + 64973.

It is an arithmetic number, because the mean of its divisors is an integer number (3367884).

Almost surely, 226813331 is an apocalyptic number.

26813331 is a deficient number, since it is larger than the sum of its proper divisors (13601277).

26813331 is a wasteful number, since it uses less digits than its factorization.

26813331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129562 (or 129559 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 26813331 is about 5178.1590357964. The cubic root of 26813331 is about 299.3070338924.

The spelling of 26813331 in words is "twenty-six million, eight hundred thirteen thousand, three hundred thirty-one".

Divisors: 1 3 9 23 69 207 129533 388599 1165797 2979259 8937777 26813331