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3885081 = 31295027
BaseRepresentation
bin1110110100100000011001
321022101022220
432310200121
51443310311
6215134253
745010524
oct16644031
97271286
103885081
112213a12
121374389
13a60485
14731bbb
1551b206
hex3b4819

3885081 has 4 divisors (see below), whose sum is σ = 5180112. Its totient is φ = 2590052.

The previous prime is 3885073. The next prime is 3885103. The reversal of 3885081 is 1805883.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1805883 = 3601961.

It is a cyclic number.

It is not a de Polignac number, because 3885081 - 23 = 3885073 is a prime.

It is a super-2 number, since 2×38850812 = 30187708753122, which contains 22 as substring.

It is a D-number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3885001) 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, 647511 + ... + 647516.

It is an arithmetic number, because the mean of its divisors is an integer number (1295028).

Almost surely, 23885081 is an apocalyptic number.

It is an amenable number.

3885081 is a deficient number, since it is larger than the sum of its proper divisors (1295031).

3885081 is a wasteful number, since it uses less digits than its factorization.

3885081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1295030.

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 3885081 is about 1971.0608818603. The cubic root of 3885081 is about 157.2051222360.

The spelling of 3885081 in words is "three million, eight hundred eighty-five thousand, eighty-one".

Divisors: 1 3 1295027 3885081