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26828037 = 332294339
BaseRepresentation
bin110011001010…
…1110100000101
31212111000011000
41212111310011
523331444122
62355003513
7444014565
oct146256405
955430130
1026828037
1114164335
128b99599
1357342a2
1437c4da5
15254e0ac
hex1995d05

26828037 has 16 divisors (see below), whose sum is σ = 39928000. Its totient is φ = 17803152.

The previous prime is 26828033. The next prime is 26828041. The reversal of 26828037 is 73082862.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (26828033) and next prime (26828041).

It is not a de Polignac number, because 26828037 - 22 = 26828033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26827992 and 26828010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26828033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4014 + ... + 8352.

It is an arithmetic number, because the mean of its divisors is an integer number (2495500).

Almost surely, 226828037 is an apocalyptic number.

26828037 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

26828037 is a deficient number, since it is larger than the sum of its proper divisors (13099963).

26828037 is a wasteful number, since it uses less digits than its factorization.

26828037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4577 (or 4571 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 26828037 is about 5179.5788438830. The cubic root of 26828037 is about 299.3617430566.

The spelling of 26828037 in words is "twenty-six million, eight hundred twenty-eight thousand, thirty-seven".

Divisors: 1 3 9 27 229 687 2061 4339 6183 13017 39051 117153 993631 2980893 8942679 26828037