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3802281 = 37181061
BaseRepresentation
bin1110100000010010101001
321011011202020
432200102221
51433133111
6213255053
744214240
oct16402251
97134666
103802281
11216778a
121334489
13a31892
1470d957
15501906
hex3a04a9

3802281 has 8 divisors (see below), whose sum is σ = 5793984. Its totient is φ = 2172720.

The previous prime is 3802241. The next prime is 3802283. The reversal of 3802281 is 1822083.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3802281 - 29 = 3801769 is a prime.

It is a super-2 number, since 2×38022812 = 28914681605922, which contains 22 as substring.

It is a Curzon number.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (3802283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90510 + ... + 90551.

It is an arithmetic number, because the mean of its divisors is an integer number (724248).

Almost surely, 23802281 is an apocalyptic number.

It is an amenable number.

3802281 is a deficient number, since it is larger than the sum of its proper divisors (1991703).

3802281 is a wasteful number, since it uses less digits than its factorization.

3802281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181071.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 3802281 is about 1949.9438453453. The cubic root of 3802281 is about 156.0802923290.

The spelling of 3802281 in words is "three million, eight hundred two thousand, two hundred eighty-one".

Divisors: 1 3 7 21 181061 543183 1267427 3802281