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27669772 = 22131074973
BaseRepresentation
bin110100110001…
…1010100001100
31221001202210101
41221203110030
524040413042
62425020444
7454121614
oct151432414
957052711
1027669772
1114689789
129324724
13596a460
143963a44
1526686b7
hex1a6350c

27669772 has 24 divisors (see below), whose sum is σ = 52644816. Its totient is φ = 12648768.

The previous prime is 27669751. The next prime is 27669773. The reversal of 27669772 is 27796672.

It is not an unprimeable number, because it can be changed into a prime (27669773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3078 + ... + 8050.

It is an arithmetic number, because the mean of its divisors is an integer number (2193534).

Almost surely, 227669772 is an apocalyptic number.

It is an amenable number.

27669772 is a deficient number, since it is larger than the sum of its proper divisors (24975044).

27669772 is a wasteful number, since it uses less digits than its factorization.

27669772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5097 (or 5095 counting only the distinct ones).

The product of its digits is 444528, while the sum is 46.

The square root of 27669772 is about 5260.2064598265. The cubic root of 27669772 is about 302.4604032591.

It can be divided in two parts, 27669 and 772, that added together give a triangular number (28441 = T238).

The spelling of 27669772 in words is "twenty-seven million, six hundred sixty-nine thousand, seven hundred seventy-two".

Divisors: 1 2 4 13 26 52 107 214 428 1391 2782 4973 5564 9946 19892 64649 129298 258596 532111 1064222 2128444 6917443 13834886 27669772