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11679620 = 225583981
BaseRepresentation
bin101100100011…
…011110000100
3210222101102112
4230203132010
510442221440
61054200152
7201163241
oct54433604
923871375
1011679620
116658087
123ab3058
13255c224
1417a05c8
15105a965
hexb23784

11679620 has 12 divisors (see below), whose sum is σ = 24527244. Its totient is φ = 4671840.

The previous prime is 11679611. The next prime is 11679631. The reversal of 11679620 is 2697611.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1592644 + 10086976 = 1262^2 + 3176^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 291971 + ... + 292010.

It is an arithmetic number, because the mean of its divisors is an integer number (2043937).

Almost surely, 211679620 is an apocalyptic number.

11679620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11679620 is an abundant number, since it is smaller than the sum of its proper divisors (12847624).

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

11679620 is a wasteful number, since it uses less digits than its factorization.

11679620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583990 (or 583988 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 11679620 is about 3417.5459031299. The cubic root of 11679620 is about 226.8869782220.

Subtracting from 11679620 its reverse (2697611), we obtain a square (8982009 = 29972).

The spelling of 11679620 in words is "eleven million, six hundred seventy-nine thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 583981 1167962 2335924 2919905 5839810 11679620