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11209492 = 227400339
BaseRepresentation
bin101010110000…
…101100010100
3210002111112101
4222300230110
510332200432
61040131444
7164164510
oct52605424
923074471
1011209492
116366948
123906b84
132426248
1416bb140
15eb64e7
hexab0b14

11209492 has 12 divisors (see below), whose sum is σ = 22419040. Its totient is φ = 4804056.

The previous prime is 11209489. The next prime is 11209493. The reversal of 11209492 is 29490211.

It is a happy number.

11209492 is an admirable number.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 400339 = 11209492 / (1 + 1 + 2 + 0 + 9 + 4 + 9 + 2).

It is a self number, because there is not a number n which added to its sum of digits gives 11209492.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11209493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200142 + ... + 200197.

Almost surely, 211209492 is an apocalyptic number.

It is an amenable number.

11209492 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

11209492 is a wasteful number, since it uses less digits than its factorization.

11209492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400350 (or 400348 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 11209492 is about 3348.0579445404. The cubic root of 11209492 is about 223.8009764942.

The spelling of 11209492 in words is "eleven million, two hundred nine thousand, four hundred ninety-two".

Divisors: 1 2 4 7 14 28 400339 800678 1601356 2802373 5604746 11209492