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874381 = 3532477
BaseRepresentation
bin11010101011110001101
31122102102111
43111132031
5210440011
630424021
710301134
oct3253615
91572374
10874381
11547a32
12362011
13247cb1
1418a91b
15124121
hexd578d

874381 has 4 divisors (see below), whose sum is σ = 877212. Its totient is φ = 871552.

The previous prime is 874373. The next prime is 874387. The reversal of 874381 is 183478.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 396900 + 477481 = 630^2 + 691^2 .

It is a cyclic number.

It is not a de Polignac number, because 874381 - 23 = 874373 is a prime.

It is a super-2 number, since 2×8743812 = 1529084266322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (874387) 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, 886 + ... + 1591.

It is an arithmetic number, because the mean of its divisors is an integer number (219303).

2874381 is an apocalyptic number.

It is an amenable number.

874381 is a deficient number, since it is larger than the sum of its proper divisors (2831).

874381 is a wasteful number, since it uses less digits than its factorization.

874381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2830.

The product of its digits is 5376, while the sum is 31.

The square root of 874381 is about 935.0834187387. The cubic root of 874381 is about 95.6239994484.

The spelling of 874381 in words is "eight hundred seventy-four thousand, three hundred eighty-one".

Divisors: 1 353 2477 874381