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201320425 = 528052817
BaseRepresentation
bin10111111111111…
…10011111101001
3112000211010201001
423333332133221
5403014223200
631550555001
74663124005
oct1377763751
9460733631
10201320425
11a3705019
1257508a61
133292a317
141ca47705
1512a1a76a
hexbffe7e9

201320425 has 6 divisors (see below), whose sum is σ = 249637358. Its totient is φ = 161056320.

The previous prime is 201320389. The next prime is 201320437. The reversal of 201320425 is 524023102.

It can be written as a sum of positive squares in 3 ways, for example, as 54110736 + 147209689 = 7356^2 + 12133^2 .

It is not a de Polignac number, because 201320425 - 217 = 201189353 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4026384 + ... + 4026433.

Almost surely, 2201320425 is an apocalyptic number.

201320425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

201320425 is a deficient number, since it is larger than the sum of its proper divisors (48316933).

201320425 is an equidigital number, since it uses as much as digits as its factorization.

201320425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8052827 (or 8052822 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 201320425 is about 14188.7428970998. The cubic root of 201320425 is about 586.0877077540.

Adding to 201320425 its reverse (524023102), we get a palindrome (725343527).

The spelling of 201320425 in words is "two hundred one million, three hundred twenty thousand, four hundred twenty-five".

Divisors: 1 5 25 8052817 40264085 201320425