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2250021 = 32332609
BaseRepresentation
bin1000100101010100100101
311020022110010
420211110211
51034000041
6120120433
725060554
oct10452445
94208403
102250021
1112a7524
12906119
1360a197
14427d9b
152e6a16
hex225525

2250021 has 8 divisors (see below), whose sum is σ = 3130560. Its totient is φ = 1434752.

The previous prime is 2250013. The next prime is 2250029. The reversal of 2250021 is 1200522.

It is an interprime number because it is at equal distance from previous prime (2250013) and next prime (2250029).

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 2250021 - 23 = 2250013 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2249979 and 2250006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2250029) 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, 16236 + ... + 16373.

It is an arithmetic number, because the mean of its divisors is an integer number (391320).

22250021 is an apocalyptic number.

It is an amenable number.

2250021 is a deficient number, since it is larger than the sum of its proper divisors (880539).

2250021 is a wasteful number, since it uses less digits than its factorization.

2250021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32635.

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 2250021 is about 1500.0069999837. The cubic root of 2250021 is about 131.0374773801.

Adding to 2250021 its reverse (1200522), we get a palindrome (3450543).

The spelling of 2250021 in words is "two million, two hundred fifty thousand, twenty-one".

Divisors: 1 3 23 69 32609 97827 750007 2250021