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3801968805 = 353167312149
BaseRepresentation
bin1110001010011101…
…0111000010100101
3100210222002000201110
43202213113002211
530241301000210
61425133215233
7163134126105
oct34247270245
910728060643
103801968805
111681126488
128a1331519
134878a65ab
14280d25205
15173ba9420
hexe29d70a5

3801968805 has 32 divisors (see below), whose sum is σ = 6289228800. Its totient is φ = 1959229440.

The previous prime is 3801968783. The next prime is 3801968809. The reversal of 3801968805 is 5088691083.

3801968805 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3801968805 - 216 = 3801903269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3801968809) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 306871 + ... + 319019.

It is an arithmetic number, because the mean of its divisors is an integer number (196538400).

Almost surely, 23801968805 is an apocalyptic number.

It is an amenable number.

3801968805 is a deficient number, since it is larger than the sum of its proper divisors (2487259995).

3801968805 is a wasteful number, since it uses less digits than its factorization.

3801968805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12861.

The product of its (nonzero) digits is 414720, while the sum is 48.

The square root of 3801968805 is about 61660.1070790507. The cubic root of 3801968805 is about 1560.7602043528.

The spelling of 3801968805 in words is "three billion, eight hundred one million, nine hundred sixty-eight thousand, eight hundred five".

Divisors: 1 3 5 15 31 93 155 465 673 2019 3365 10095 12149 20863 36447 60745 62589 104315 182235 312945 376619 1129857 1883095 5649285 8176277 24528831 40881385 122644155 253464587 760393761 1267322935 3801968805