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4244687 = 21120117
BaseRepresentation
bin10000001100010011001111
321222122121122
4100030103033
52041312222
6230551155
751036116
oct20142317
97878548
104244687
11243a107
1215084bb
13b58065
147c6c7d
1558ca42
hex40c4cf

4244687 has 4 divisors (see below), whose sum is σ = 4265016. Its totient is φ = 4224360.

The previous prime is 4244663. The next prime is 4244693. The reversal of 4244687 is 7864424.

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

It is a cyclic number.

It is not a de Polignac number, because 4244687 - 28 = 4244431 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 4 + 215 + 44 + 411 + 62 + 83 + 75 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4244987) 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, 9848 + ... + 10269.

It is an arithmetic number, because the mean of its divisors is an integer number (1066254).

Almost surely, 24244687 is an apocalyptic number.

4244687 is a deficient number, since it is larger than the sum of its proper divisors (20329).

4244687 is a wasteful number, since it uses less digits than its factorization.

4244687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20328.

The product of its digits is 43008, while the sum is 35.

The square root of 4244687 is about 2060.2638180583. The cubic root of 4244687 is about 161.9130636527.

The spelling of 4244687 in words is "four million, two hundred forty-four thousand, six hundred eighty-seven".

Divisors: 1 211 20117 4244687