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1214331001 = 1393410077
BaseRepresentation
bin100100001100001…
…0011100001111001
310010121222101222021
41020120103201321
54441332043001
6320255154441
742043433422
oct11030234171
93117871867
101214331001
11573504944
1229a815a21
13164771470
14b73c0649
157191bba1
hex48613879

1214331001 has 4 divisors (see below), whose sum is σ = 1307741092. Its totient is φ = 1120920912.

The previous prime is 1214330987. The next prime is 1214331073. The reversal of 1214331001 is 1001334121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 203091001 + 1011240000 = 14251^2 + 31800^2 .

It is a cyclic number.

It is not a de Polignac number, because 1214331001 - 223 = 1205942393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1214331901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46705026 + ... + 46705051.

It is an arithmetic number, because the mean of its divisors is an integer number (326935273).

Almost surely, 21214331001 is an apocalyptic number.

It is an amenable number.

1214331001 is a deficient number, since it is larger than the sum of its proper divisors (93410091).

1214331001 is an equidigital number, since it uses as much as digits as its factorization.

1214331001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93410090.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1214331001 is about 34847.2524167975. The cubic root of 1214331001 is about 1066.8721069899.

Adding to 1214331001 its reverse (1001334121), we get a palindrome (2215665122).

The spelling of 1214331001 in words is "one billion, two hundred fourteen million, three hundred thirty-one thousand, one".

Divisors: 1 13 93410077 1214331001