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11968907 = 54721881
BaseRepresentation
bin101101101010…
…000110001011
3211112002020212
4231222012023
511031001112
61104311335
7203506526
oct55520613
924462225
1011968907
116835465
12401254b
132630ac2
141837bbd
1510b6522
hexb6a18b

11968907 has 4 divisors (see below), whose sum is σ = 11991336. Its totient is φ = 11946480.

The previous prime is 11968903. The next prime is 11968939. The reversal of 11968907 is 70986911.

It is a happy number.

11968907 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70986911 = 268926399.

It is not a de Polignac number, because 11968907 - 22 = 11968903 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11968903) 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, 10394 + ... + 11487.

It is an arithmetic number, because the mean of its divisors is an integer number (2997834).

Almost surely, 211968907 is an apocalyptic number.

11968907 is a deficient number, since it is larger than the sum of its proper divisors (22429).

11968907 is an equidigital number, since it uses as much as digits as its factorization.

11968907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22428.

The product of its (nonzero) digits is 27216, while the sum is 41.

The square root of 11968907 is about 3459.6108162624. The cubic root of 11968907 is about 228.7449408140.

The spelling of 11968907 in words is "eleven million, nine hundred sixty-eight thousand, nine hundred seven".

Divisors: 1 547 21881 11968907