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1942025 = 5277681
BaseRepresentation
bin111011010001000001001
310122122221212
413122020021
5444121100
6105342505
722335611
oct7321011
93578855
101942025
111107088
12797a35
1352cc37
14387a41
15285635
hex1da209

1942025 has 6 divisors (see below), whose sum is σ = 2408142. Its totient is φ = 1553600.

The previous prime is 1942021. The next prime is 1942027. The reversal of 1942025 is 5202491.

It can be written as a sum of positive squares in 3 ways, for example, as 26569 + 1915456 = 163^2 + 1384^2 .

It is not a de Polignac number, because 1942025 - 22 = 1942021 is a prime.

It is a super-2 number, since 2×19420252 = 7542922201250, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1942021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38816 + ... + 38865.

It is an arithmetic number, because the mean of its divisors is an integer number (401357).

21942025 is an apocalyptic number.

It is an amenable number.

1942025 is a deficient number, since it is larger than the sum of its proper divisors (466117).

1942025 is an equidigital number, since it uses as much as digits as its factorization.

1942025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77691 (or 77686 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1942025 is about 1393.5655707573. The cubic root of 1942025 is about 124.7627499843.

The spelling of 1942025 in words is "one million, nine hundred forty-two thousand, twenty-five".

Divisors: 1 5 25 77681 388405 1942025