[go: up one dir, main page]

Search a number
-
+
2438420 = 225121921
BaseRepresentation
bin1001010011010100010100
311120212212212
421103110110
51111012140
6124132552
726504045
oct11232424
94525785
102438420
111416026
12997158
13674b6a
144768cc
15332765
hex253514

2438420 has 12 divisors (see below), whose sum is σ = 5120724. Its totient is φ = 975360.

The previous prime is 2438417. The next prime is 2438453. The reversal of 2438420 is 248342.

It can be written as a sum of positive squares in 2 ways, for example, as 1331716 + 1106704 = 1154^2 + 1052^2 .

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 a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60941 + ... + 60980.

It is an arithmetic number, because the mean of its divisors is an integer number (426727).

22438420 is an apocalyptic number.

2438420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2438420 is an abundant number, since it is smaller than the sum of its proper divisors (2682304).

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

2438420 is a wasteful number, since it uses less digits than its factorization.

2438420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121930 (or 121928 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 2438420 is about 1561.5441076063. The cubic root of 2438420 is about 134.5972449864.

The spelling of 2438420 in words is "two million, four hundred thirty-eight thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 121921 243842 487684 609605 1219210 2438420