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11992369 = 34632
BaseRepresentation
bin101101101111…
…110100110001
3211120021102211
4231233310301
511032223434
61105012121
7203635114
oct55576461
924507384
1011992369
116851054
124024041
13263b69c
14184257b
1510bd464
hexb6fd31

11992369 has 3 divisors (see below), whose sum is σ = 11995833. Its totient is φ = 11988906.

The previous prime is 11992349. The next prime is 11992373. The reversal of 11992369 is 96329911.

The square root of 11992369 is 3463.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 96329911 = 234188257.

It is not a de Polignac number, because 11992369 - 215 = 11959601 is a prime.

It is a super-2 number, since 2×119923692 = 287633828464322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11992339) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1732 + ... + 5194.

It is an arithmetic number, because the mean of its divisors is an integer number (3998611).

Almost surely, 211992369 is an apocalyptic number.

11992369 is the 3463-rd square number.

11992369 is the 1732-nd centered octagonal number.

It is an amenable number.

11992369 is a deficient number, since it is larger than the sum of its proper divisors (3464).

11992369 is an frugal number, since it uses more digits than its factorization.

11992369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6926 (or 3463 counting only the distinct ones).

The product of its digits is 26244, while the sum is 40.

The cubic root of 11992369 is about 228.8943086958.

Multiplying 11992369 by its product of digits (26244), we get a square (314727732036 = 5610062).

The spelling of 11992369 in words is "eleven million, nine hundred ninety-two thousand, three hundred sixty-nine".

Divisors: 1 3463 11992369