Search a number
-
+
3801965 = 51744729
BaseRepresentation
bin1110100000001101101101
321011011022112
432200031231
51433130330
6213253405
744213306
oct16401555
97134275
103801965
112167522
121334265
13a316ab
1470d7ad
15501795
hex3a036d

3801965 has 8 divisors (see below), whose sum is σ = 4830840. Its totient is φ = 2862592.

The previous prime is 3801953. The next prime is 3801977. The reversal of 3801965 is 5691083.

3801965 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3801953) and next prime (3801977).

It can be written as a sum of positive squares in 4 ways, for example, as 1261129 + 2540836 = 1123^2 + 1594^2 .

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 3801965 - 24 = 3801949 is a prime.

It is a super-2 number, since 2×38019652 = 28909875722450, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 22280 + ... + 22449.

It is an arithmetic number, because the mean of its divisors is an integer number (603855).

Almost surely, 23801965 is an apocalyptic number.

It is an amenable number.

3801965 is a deficient number, since it is larger than the sum of its proper divisors (1028875).

3801965 is a wasteful number, since it uses less digits than its factorization.

3801965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44751.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 3801965 is about 1949.8628156873. The cubic root of 3801965 is about 156.0759683684.

The spelling of 3801965 in words is "three million, eight hundred one thousand, nine hundred sixty-five".

Divisors: 1 5 17 85 44729 223645 760393 3801965