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3220501 = 10331267
BaseRepresentation
bin1100010010010000010101
320001121200211
430102100111
51311024001
6153005421
736242134
oct14222025
96047624
103220501
1118aa679
1210b3871
13889b2b
145db91b
15439351
hex312415

3220501 has 4 divisors (see below), whose sum is σ = 3251872. Its totient is φ = 3189132.

The previous prime is 3220499. The next prime is 3220513. The reversal of 3220501 is 1050223.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1050223 = 9471109.

It is a cyclic number.

It is not a de Polignac number, because 3220501 - 21 = 3220499 is a prime.

It is a Duffinian number.

3220501 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3220561) 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, 15531 + ... + 15736.

It is an arithmetic number, because the mean of its divisors is an integer number (812968).

Almost surely, 23220501 is an apocalyptic number.

It is an amenable number.

3220501 is a deficient number, since it is larger than the sum of its proper divisors (31371).

3220501 is a wasteful number, since it uses less digits than its factorization.

3220501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31370.

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 3220501 is about 1794.5754372553. The cubic root of 3220501 is about 147.6752833344.

Adding to 3220501 its reverse (1050223), we get a palindrome (4270724).

It can be divided in two parts, 3220 and 501, that added together give a square (3721 = 612).

The spelling of 3220501 in words is "three million, two hundred twenty thousand, five hundred one".

Divisors: 1 103 31267 3220501