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13822001 = 31445871
BaseRepresentation
bin110100101110…
…100000110001
3222000020012222
4310232200301
512014301001
61212130425
7225325244
oct64564061
928006188
1013822001
117890746
124766a15
132b2c3cb
141b9b25b
15133061b
hexd2e831

13822001 has 4 divisors (see below), whose sum is σ = 14267904. Its totient is φ = 13376100.

The previous prime is 13821971. The next prime is 13822007. The reversal of 13822001 is 10022831.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13822001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13822007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222905 + ... + 222966.

It is an arithmetic number, because the mean of its divisors is an integer number (3566976).

Almost surely, 213822001 is an apocalyptic number.

It is an amenable number.

13822001 is a deficient number, since it is larger than the sum of its proper divisors (445903).

13822001 is an equidigital number, since it uses as much as digits as its factorization.

13822001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445902.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 13822001 is about 3717.7951799420. The cubic root of 13822001 is about 239.9884311553.

Adding to 13822001 its reverse (10022831), we get a palindrome (23844832).

The spelling of 13822001 in words is "thirteen million, eight hundred twenty-two thousand, one".

Divisors: 1 31 445871 13822001