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27054440 = 2357234201
BaseRepresentation
bin110011100110…
…1000101101000
31212220111201022
41213031011220
523411220230
62403512012
7445646630
oct147150550
955814638
1027054440
11142a9446
129088608
1357b335a
1438436c0
1525961e5
hex19cd168

27054440 has 64 divisors (see below), whose sum is σ = 72610560. Its totient is φ = 8870400.

The previous prime is 27054421. The next prime is 27054449. The reversal of 27054440 is 4445072.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (27054449) 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, 4340 + ... + 8540.

It is an arithmetic number, because the mean of its divisors is an integer number (1134540).

Almost surely, 227054440 is an apocalyptic number.

27054440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27054440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36305280).

27054440 is an abundant number, since it is smaller than the sum of its proper divisors (45556120).

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

27054440 is a wasteful number, since it uses less digits than its factorization.

27054440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4242 (or 4238 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 26.

The square root of 27054440 is about 5201.3882762201. The cubic root of 27054440 is about 300.2014942662.

The spelling of 27054440 in words is "twenty-seven million, fifty-four thousand, four hundred forty".

Divisors: 1 2 4 5 7 8 10 14 20 23 28 35 40 46 56 70 92 115 140 161 184 230 280 322 460 644 805 920 1288 1610 3220 4201 6440 8402 16804 21005 29407 33608 42010 58814 84020 96623 117628 147035 168040 193246 235256 294070 386492 483115 588140 676361 772984 966230 1176280 1352722 1932460 2705444 3381805 3864920 5410888 6763610 13527220 27054440