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3843894 = 23640649
BaseRepresentation
bin1110101010011100110110
321020021211110
432222130312
51441001034
6214215450
744446455
oct16523466
97207743
103843894
112195a7a
121354586
13a477c2
14720b9c
1550dde9
hex3aa736

3843894 has 8 divisors (see below), whose sum is σ = 7687800. Its totient is φ = 1281296.

The previous prime is 3843883. The next prime is 3843913. The reversal of 3843894 is 4983483.

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

3843894 is an admirable number.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 320319 + ... + 320330.

It is an arithmetic number, because the mean of its divisors is an integer number (960975).

Almost surely, 23843894 is an apocalyptic number.

3843894 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3843894 is a wasteful number, since it uses less digits than its factorization.

3843894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640654.

The product of its digits is 82944, while the sum is 39.

The square root of 3843894 is about 1960.5851167445. The cubic root of 3843894 is about 156.6476200375.

It can be divided in two parts, 384 and 3894, that added together give a triangular number (4278 = T92).

The spelling of 3843894 in words is "three million, eight hundred forty-three thousand, eight hundred ninety-four".

Divisors: 1 2 3 6 640649 1281298 1921947 3843894