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12030201 = 35311597
BaseRepresentation
bin101101111001…
…000011111001
3211122012100000
4231321003321
511034431301
61105503213
7204153321
oct55710371
924565300
1012030201
116877517
124041b09
132652981
141852281
1510c9786
hexb790f9

12030201 has 24 divisors (see below), whose sum is σ = 18613504. Its totient is φ = 7756560.

The previous prime is 12030197. The next prime is 12030209. The reversal of 12030201 is 10203021.

It is a happy number.

It is not a de Polignac number, because 12030201 - 22 = 12030197 is a prime.

It is a super-2 number, since 2×120302012 = 289451472200802, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12030209) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6735 + ... + 8331.

Almost surely, 212030201 is an apocalyptic number.

It is an amenable number.

12030201 is a deficient number, since it is larger than the sum of its proper divisors (6583303).

12030201 is an equidigital number, since it uses as much as digits as its factorization.

12030201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1643 (or 1631 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 12030201 is about 3468.4580147380. The cubic root of 12030201 is about 229.1347515812.

Adding to 12030201 its reverse (10203021), we get a palindrome (22233222).

It can be divided in two parts, 1203020 and 1, that added together give a palindrome (1203021).

The spelling of 12030201 in words is "twelve million, thirty thousand, two hundred one".