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11974885 = 5131710837
BaseRepresentation
bin101101101011…
…100011100101
3211112101110021
4231223203211
511031144020
61104355141
7203533126
oct55534345
924471407
1011974885
1168399aa
124015ab1
132633740
14183a04d
1510b81aa
hexb6b8e5

11974885 has 16 divisors (see below), whose sum is σ = 16387056. Its totient is φ = 8322048.

The previous prime is 11974871. The next prime is 11974889. The reversal of 11974885 is 58847911.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 859329 + 11115556 = 927^2 + 3334^2 .

It is a cyclic number.

It is not a de Polignac number, because 11974885 - 27 = 11974757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11974889) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4314 + ... + 6523.

It is an arithmetic number, because the mean of its divisors is an integer number (1024191).

Almost surely, 211974885 is an apocalyptic number.

It is an amenable number.

11974885 is a deficient number, since it is larger than the sum of its proper divisors (4412171).

11974885 is a wasteful number, since it uses less digits than its factorization.

11974885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10872.

The product of its digits is 80640, while the sum is 43.

The square root of 11974885 is about 3460.4746784220. The cubic root of 11974885 is about 228.7830175200.

The spelling of 11974885 in words is "eleven million, nine hundred seventy-four thousand, eight hundred eighty-five".

Divisors: 1 5 13 17 65 85 221 1105 10837 54185 140881 184229 704405 921145 2394977 11974885