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27682669 = 74391969
BaseRepresentation
bin110100110011…
…0011101101101
31221002102111001
41221212131231
524041321134
62425200301
7454204330
oct151463555
957072431
1027682669
1114698443
129330091
1359732a1
143968617
15266c414
hex1a6676d

27682669 has 8 divisors (see below), whose sum is σ = 32373440. Its totient is φ = 23175936.

The previous prime is 27682663. The next prime is 27682693. The reversal of 27682669 is 96628672.

It is a happy number.

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

It is not a de Polignac number, because 27682669 - 29 = 27682157 is a prime.

It is a super-2 number, since 2×276826692 = 1532660325927122, 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 (27682663) 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, 45684 + ... + 46285.

It is an arithmetic number, because the mean of its divisors is an integer number (4046680).

Almost surely, 227682669 is an apocalyptic number.

It is an amenable number.

27682669 is a deficient number, since it is larger than the sum of its proper divisors (4690771).

27682669 is an equidigital number, since it uses as much as digits as its factorization.

27682669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92019.

The product of its digits is 435456, while the sum is 46.

The square root of 27682669 is about 5261.4322194627. The cubic root of 27682669 is about 302.5073886591.

It can be divided in two parts, 27 and 682669, that added together give a triangular number (682696 = T1168).

The spelling of 27682669 in words is "twenty-seven million, six hundred eighty-two thousand, six hundred sixty-nine".

Divisors: 1 7 43 301 91969 643783 3954667 27682669