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11995973 = 111957397
BaseRepresentation
bin101101110000…
…101101000101
3211120110101022
4231300231011
511032332343
61105040525
7203651453
oct55605505
924513338
1011995973
116853830
124026145
132640212
1418439d3
1510be568
hexb70b45

11995973 has 8 divisors (see below), whose sum is σ = 13775520. Its totient is φ = 10331280.

The previous prime is 11995961. The next prime is 11995981. The reversal of 11995973 is 37959911.

11995973 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11995973 - 24 = 11995957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11995573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28490 + ... + 28907.

It is an arithmetic number, because the mean of its divisors is an integer number (1721940).

Almost surely, 211995973 is an apocalyptic number.

It is an amenable number.

11995973 is a deficient number, since it is larger than the sum of its proper divisors (1779547).

11995973 is a wasteful number, since it uses less digits than its factorization.

11995973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57427.

The product of its digits is 76545, while the sum is 44.

The square root of 11995973 is about 3463.5203189818. The cubic root of 11995973 is about 228.9172358440.

The spelling of 11995973 in words is "eleven million, nine hundred ninety-five thousand, nine hundred seventy-three".

Divisors: 1 11 19 209 57397 631367 1090543 11995973