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13803803 = 131061831
BaseRepresentation
bin110100101010…
…000100011011
3221222022020222
4310222010123
512013210203
61211510255
7225221216
oct64520433
927868228
1013803803
117879002
12475838b
132b24040
141b9477d
15132a038
hexd2a11b

13803803 has 4 divisors (see below), whose sum is σ = 14865648. Its totient is φ = 12741960.

The previous prime is 13803799. The next prime is 13803827. The reversal of 13803803 is 30830831.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13803803 - 22 = 13803799 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13803833) 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, 530903 + ... + 530928.

It is an arithmetic number, because the mean of its divisors is an integer number (3716412).

Almost surely, 213803803 is an apocalyptic number.

13803803 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13803803 is a deficient number, since it is larger than the sum of its proper divisors (1061845).

13803803 is a wasteful number, since it uses less digits than its factorization.

13803803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1061844.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 13803803 is about 3715.3469555346. The cubic root of 13803803 is about 239.8830622454.

The spelling of 13803803 in words is "thirteen million, eight hundred three thousand, eight hundred three".

Divisors: 1 13 1061831 13803803