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27056440 = 235676411
BaseRepresentation
bin110011100110…
…1100100111000
31212220121110101
41213031210320
523411301230
62403525144
7445655515
oct147154470
955817411
1027056440
11142aa9a4
1290897b4
1357b4238
14384430c
152596aca
hex19cd938

27056440 has 16 divisors (see below), whose sum is σ = 60877080. Its totient is φ = 10822560.

The previous prime is 27056413. The next prime is 27056453. The reversal of 27056440 is 4465072.

It is a junction number, because it is equal to n+sod(n) for n = 27056399 and 27056408.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 338166 + ... + 338245.

Almost surely, 227056440 is an apocalyptic number.

27056440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27056440 is an abundant number, since it is smaller than the sum of its proper divisors (33820640).

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

27056440 is a wasteful number, since it uses less digits than its factorization.

27056440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676422 (or 676418 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 27056440 is about 5201.5805290315. The cubic root of 27056440 is about 300.2088915510.

The spelling of 27056440 in words is "twenty-seven million, fifty-six thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 40 676411 1352822 2705644 3382055 5411288 6764110 13528220 27056440