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2213215001 = 13116894771
BaseRepresentation
bin1000001111101010…
…1111101100011001
312201020112222012222
42003322233230121
514013040340001
61003340513425
7105563005604
oct20372575431
95636488188
102213215001
11a36336208
1251924b875
132936aa69a
1416dd1b33b
15ce47c61b
hex83eafb19

2213215001 has 4 divisors (see below), whose sum is σ = 2230109904. Its totient is φ = 2196320100.

The previous prime is 2213214979. The next prime is 2213215009. The reversal of 2213215001 is 1005123122.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2k-2213215001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2213215009) 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, 8447255 + ... + 8447516.

It is an arithmetic number, because the mean of its divisors is an integer number (557527476).

Almost surely, 22213215001 is an apocalyptic number.

It is an amenable number.

2213215001 is a deficient number, since it is larger than the sum of its proper divisors (16894903).

2213215001 is a wasteful number, since it uses less digits than its factorization.

2213215001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16894902.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 2213215001 is about 47044.8190665030. The cubic root of 2213215001 is about 1303.1903889660.

Adding to 2213215001 its reverse (1005123122), we get a palindrome (3218338123).

The spelling of 2213215001 in words is "two billion, two hundred thirteen million, two hundred fifteen thousand, one".

Divisors: 1 131 16894771 2213215001