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2001242201 = 7285891743
BaseRepresentation
bin111011101001000…
…1000100001011001
312011110200122012112
41313102020201121
513044304222301
6530325322105
7100410164240
oct16722104131
95143618175
102001242201
11937715982
1247a266335
1325b7c08aa
1414dadd957
15baa5a9bb
hex77488859

2001242201 has 4 divisors (see below), whose sum is σ = 2287133952. Its totient is φ = 1715350452.

The previous prime is 2001242197. The next prime is 2001242209. The reversal of 2001242201 is 1022421002.

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.

It is a cyclic number.

It is not a de Polignac number, because 2001242201 - 22 = 2001242197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2001242209) 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, 142945865 + ... + 142945878.

It is an arithmetic number, because the mean of its divisors is an integer number (571783488).

Almost surely, 22001242201 is an apocalyptic number.

It is an amenable number.

2001242201 is a deficient number, since it is larger than the sum of its proper divisors (285891751).

2001242201 is an equidigital number, since it uses as much as digits as its factorization.

2001242201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285891750.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 2001242201 is about 44735.2456235573. The cubic root of 2001242201 is about 1260.1818417744.

Adding to 2001242201 its reverse (1022421002), we get a palindrome (3023663203).

The spelling of 2001242201 in words is "two billion, one million, two hundred forty-two thousand, two hundred one".

Divisors: 1 7 285891743 2001242201