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11201992 = 231400249
BaseRepresentation
bin101010101110…
…110111001000
3210002010020121
4222232313020
510331430432
61040033024
7164133604
oct52566710
923063217
1011201992
11636124a
123902774
1324229c9
1416b8504
15eb4197
hexaaedc8

11201992 has 8 divisors (see below), whose sum is σ = 21003750. Its totient is φ = 5600992.

The previous prime is 11201987. The next prime is 11202017. The reversal of 11201992 is 29910211.

It can be written as a sum of positive squares in only one way, i.e., 11115556 + 86436 = 3334^2 + 294^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 700117 + ... + 700132.

Almost surely, 211201992 is an apocalyptic number.

It is an amenable number.

11201992 is a deficient number, since it is larger than the sum of its proper divisors (9801758).

11201992 is a wasteful number, since it uses less digits than its factorization.

11201992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1400255 (or 1400251 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 25.

The square root of 11201992 is about 3346.9377048281. The cubic root of 11201992 is about 223.7510520846.

The spelling of 11201992 in words is "eleven million, two hundred one thousand, nine hundred ninety-two".

Divisors: 1 2 4 8 1400249 2800498 5600996 11201992