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11202804 = 2232311189
BaseRepresentation
bin101010101111…
…000011110100
3210002011100200
4222233003310
510331442204
61040040500
7164136144
oct52570364
923064320
1011202804
116361918
123903130
1324231a2
1416b8924
15eb4539
hexaaf0f4

11202804 has 18 divisors (see below), whose sum is σ = 28318290. Its totient is φ = 3734256.

The previous prime is 11202791. The next prime is 11202809. The reversal of 11202804 is 40820211.

It can be written as a sum of positive squares in only one way, i.e., 10304100 + 898704 = 3210^2 + 948^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11202809) by changing a digit.

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 in 5 ways as a sum of consecutive naturals, for example, 155559 + ... + 155630.

Almost surely, 211202804 is an apocalyptic number.

It is an amenable number.

11202804 is an abundant number, since it is smaller than the sum of its proper divisors (17115486).

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

11202804 is a wasteful number, since it uses less digits than its factorization.

11202804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311199 (or 311194 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 11202804 is about 3347.0590075468. The cubic root of 11202804 is about 223.7564583095.

The spelling of 11202804 in words is "eleven million, two hundred two thousand, eight hundred four".

Divisors: 1 2 3 4 6 9 12 18 36 311189 622378 933567 1244756 1867134 2800701 3734268 5601402 11202804