Search a number
-
+
1448420 = 22572421
BaseRepresentation
bin101100001100111100100
32201120212012
411201213210
5332322140
651013352
715211541
oct5414744
92646765
101448420
118aa246
1259a258
133b936c
14299bc8
151d9265
hex1619e4

1448420 has 12 divisors (see below), whose sum is σ = 3041724. Its totient is φ = 579360.

The previous prime is 1448411. The next prime is 1448423. The reversal of 1448420 is 248441.

It can be written as a sum of positive squares in 2 ways, for example, as 719104 + 729316 = 848^2 + 854^2 .

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1448423) 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, 36191 + ... + 36230.

It is an arithmetic number, because the mean of its divisors is an integer number (253477).

21448420 is an apocalyptic number.

1448420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1448420 is an abundant number, since it is smaller than the sum of its proper divisors (1593304).

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

1448420 is a wasteful number, since it uses less digits than its factorization.

1448420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72430 (or 72428 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

The square root of 1448420 is about 1203.5032197713. The cubic root of 1448420 is about 113.1439937380.

The spelling of 1448420 in words is "one million, four hundred forty-eight thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 72421 144842 289684 362105 724210 1448420