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1001214442 = 2500607221
BaseRepresentation
bin111011101011010…
…101000111101010
32120202221222000101
4323223111013222
54022302330232
6243203300014
733545116354
oct7353250752
92522858011
101001214442
11474183258
1223b37a60a
1312c573ba7
1496d860d4
155cd711e7
hex3bad51ea

1001214442 has 4 divisors (see below), whose sum is σ = 1501821666. Its totient is φ = 500607220.

The previous prime is 1001214421. The next prime is 1001214509. The reversal of 1001214442 is 2444121001.

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

It can be written as a sum of positive squares in only one way, i.e., 535043161 + 466171281 = 23131^2 + 21591^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250303609 + ... + 250303612.

Almost surely, 21001214442 is an apocalyptic number.

1001214442 is a deficient number, since it is larger than the sum of its proper divisors (500607224).

1001214442 is an equidigital number, since it uses as much as digits as its factorization.

1001214442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500607223.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 1001214442 is about 31641.9727893189. The cubic root of 1001214442 is about 1000.4046502361.

Adding to 1001214442 its reverse (2444121001), we get a palindrome (3445335443).

The spelling of 1001214442 in words is "one billion, one million, two hundred fourteen thousand, four hundred forty-two".

Divisors: 1 2 500607221 1001214442