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2000245 = 51330773
BaseRepresentation
bin111101000010101110101
310202121211011
413220111311
51003001440
6110512221
723000422
oct7502565
93677734
102000245
1111468a5
12805671
135505a0
143a0d49
152979ea
hex1e8575

2000245 has 8 divisors (see below), whose sum is σ = 2585016. Its totient is φ = 1477056.

The previous prime is 2000227. The next prime is 2000249. The reversal of 2000245 is 5420002.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 23409 + 1976836 = 153^2 + 1406^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2000245 - 29 = 1999733 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15322 + ... + 15451.

It is an arithmetic number, because the mean of its divisors is an integer number (323127).

22000245 is an apocalyptic number.

It is an amenable number.

2000245 is a deficient number, since it is larger than the sum of its proper divisors (584771).

2000245 is a wasteful number, since it uses less digits than its factorization.

2000245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30791.

The product of its (nonzero) digits is 80, while the sum is 13.

The square root of 2000245 is about 1414.3001803012. The cubic root of 2000245 is about 125.9972494570.

Adding to 2000245 its reverse (5420002), we get a palindrome (7420247).

It can be divided in two parts, 2000 and 245, that multiplied together give a square (490000 = 7002).

The spelling of 2000245 in words is "two million, two hundred forty-five", and thus it is an aban number.

Divisors: 1 5 13 65 30773 153865 400049 2000245