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BaseRepresentation
bin1100110110101010001
3210101210001
41212311101
5101434301
613010001
73402664
oct1466521
9711701
10421201
11268500
12183901
13119941
1584c01
hex66d51

421201 has 9 divisors (see below), whose sum is σ = 470953. Its totient is φ = 376420.

The previous prime is 421189. The next prime is 421207. The reversal of 421201 is 102124.

The square root of 421201 is 649.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 421201 - 213 = 413009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421207) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 7110 + ... + 7168.

2421201 is an apocalyptic number.

421201 is the 649-th square number.

421201 is the 325-th centered octagonal number.

It is an amenable number.

421201 is a deficient number, since it is larger than the sum of its proper divisors (49752).

421201 is an equidigital number, since it uses as much as digits as its factorization.

421201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140 (or 70 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The cubic root of 421201 is about 74.9600379702.

Multiplying 421201 by its product of nonzero digits (16), we get a square (6739216 = 25962).

Adding to 421201 its reverse (102124), we get a palindrome (523325).

The spelling of 421201 in words is "four hundred twenty-one thousand, two hundred one", and thus it is an iban number.

Divisors: 1 11 59 121 649 3481 7139 38291 421201