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27774085 = 515735381
BaseRepresentation
bin110100111110…
…0110010000101
31221021001212211
41221330302011
524102232320
62431143421
7455035003
oct151746205
957231784
1027774085
1114750099
129374b71
1359a5a91
14398da73
15268955a
hex1a7cc85

27774085 has 8 divisors (see below), whose sum is σ = 33542136. Its totient is φ = 22077120.

The previous prime is 27774079. The next prime is 27774119. The reversal of 27774085 is 58047772.

It can be written as a sum of positive squares in 4 ways, for example, as 4743684 + 23030401 = 2178^2 + 4799^2 .

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

It is not a de Polignac number, because 27774085 - 23 = 27774077 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 16906 + ... + 18475.

It is an arithmetic number, because the mean of its divisors is an integer number (4192767).

Almost surely, 227774085 is an apocalyptic number.

It is an amenable number.

27774085 is a deficient number, since it is larger than the sum of its proper divisors (5768051).

27774085 is a wasteful number, since it uses less digits than its factorization.

27774085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35543.

The product of its (nonzero) digits is 109760, while the sum is 40.

The square root of 27774085 is about 5270.1124276433. The cubic root of 27774085 is about 302.8400110989.

The spelling of 27774085 in words is "twenty-seven million, seven hundred seventy-four thousand, eighty-five".

Divisors: 1 5 157 785 35381 176905 5554817 27774085