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10220501 = 40924989
BaseRepresentation
bin100110111111…
…001111010101
3201020020220002
4212333033111
510104024001
61003021045
7152605244
oct46771725
921206802
1010220501
1158508a5
12350a785
13216b045
14150095b
15d6d46b
hex9bf3d5

10220501 has 4 divisors (see below), whose sum is σ = 10245900. Its totient is φ = 10195104.

The previous prime is 10220491. The next prime is 10220513. The reversal of 10220501 is 10502201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9891025 + 329476 = 3145^2 + 574^2 .

It is a cyclic number.

It is not a de Polignac number, because 10220501 - 26 = 10220437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10220591) 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, 12086 + ... + 12903.

It is an arithmetic number, because the mean of its divisors is an integer number (2561475).

Almost surely, 210220501 is an apocalyptic number.

It is an amenable number.

10220501 is a deficient number, since it is larger than the sum of its proper divisors (25399).

10220501 is an equidigital number, since it uses as much as digits as its factorization.

10220501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25398.

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 10220501 is about 3196.9518294776. The cubic root of 10220501 is about 217.0154872960.

Adding to 10220501 its reverse (10502201), we get a palindrome (20722702).

The spelling of 10220501 in words is "ten million, two hundred twenty thousand, five hundred one".

Divisors: 1 409 24989 10220501