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27067381 = 1119129509
BaseRepresentation
bin110011101000…
…0001111110101
31212221011110121
41213100033311
523412124011
62404051541
7446032435
oct147201765
955834417
1027067381
1114308140
129093bb1
1357b9203
1438482c5
152599e71
hex19d03f5

27067381 has 8 divisors (see below), whose sum is σ = 31082400. Its totient is φ = 23311440.

The previous prime is 27067373. The next prime is 27067399. The reversal of 27067381 is 18376072.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27067381 - 23 = 27067373 is a prime.

It is a super-2 number, since 2×270673812 = 1465286228398322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27067321) 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, 64546 + ... + 64963.

It is an arithmetic number, because the mean of its divisors is an integer number (3885300).

Almost surely, 227067381 is an apocalyptic number.

It is an amenable number.

27067381 is a deficient number, since it is larger than the sum of its proper divisors (4015019).

27067381 is a wasteful number, since it uses less digits than its factorization.

27067381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129539.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 27067381 is about 5202.6321223012. The cubic root of 27067381 is about 300.2493519472.

The spelling of 27067381 in words is "twenty-seven million, sixty-seven thousand, three hundred eighty-one".

Divisors: 1 11 19 209 129509 1424599 2460671 27067381