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4284644 = 2271379149
BaseRepresentation
bin10000010110000011100100
322001200102112
4100112003210
52044102034
6231500152
751263450
oct20260344
98050375
104284644
112467131
121527658
13b702c0
147d7660
155997ce
hex4160e4

4284644 has 48 divisors (see below), whose sum is σ = 9408000. Its totient is φ = 1662336.

The previous prime is 4284641. The next prime is 4284659. The reversal of 4284644 is 4464824.

It is a d-powerful number, because it can be written as 4 + 213 + 8 + 47 + 63 + 48 + 411 .

It is a self number, because there is not a number n which added to its sum of digits gives 4284644.

It is not an unprimeable number, because it can be changed into a prime (4284641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28682 + ... + 28830.

It is an arithmetic number, because the mean of its divisors is an integer number (196000).

Almost surely, 24284644 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4284644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4704000).

4284644 is an abundant number, since it is smaller than the sum of its proper divisors (5123356).

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

4284644 is a wasteful number, since it uses less digits than its factorization.

4284644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252 (or 250 counting only the distinct ones).

The product of its digits is 24576, while the sum is 32.

The square root of 4284644 is about 2069.9381633276. The cubic root of 4284644 is about 162.4195293880.

The spelling of 4284644 in words is "four million, two hundred eighty-four thousand, six hundred forty-four".

Divisors: 1 2 4 7 13 14 26 28 52 79 91 149 158 182 298 316 364 553 596 1027 1043 1106 1937 2054 2086 2212 3874 4108 4172 7189 7748 11771 13559 14378 23542 27118 28756 47084 54236 82397 153023 164794 306046 329588 612092 1071161 2142322 4284644