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1001414221 = 1987503983
BaseRepresentation
bin111011101100000…
…101111001001101
32120210100010001121
4323230011321031
54022330223341
6243211440541
733546610663
oct7354057115
92523303047
101001414221
114742aa365
1223b456151
1312c613ac2
1496dd8c33
155cdb04d1
hex3bb05e4d

1001414221 has 4 divisors (see below), whose sum is σ = 1001920192. Its totient is φ = 1000908252.

The previous prime is 1001414207. The next prime is 1001414231. The reversal of 1001414221 is 1224141001.

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 not a de Polignac number, because 1001414221 - 29 = 1001413709 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1001414195 and 1001414204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001414201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250005 + ... + 253978.

It is an arithmetic number, because the mean of its divisors is an integer number (250480048).

Almost surely, 21001414221 is an apocalyptic number.

It is an amenable number.

1001414221 is a deficient number, since it is larger than the sum of its proper divisors (505971).

1001414221 is an equidigital number, since it uses as much as digits as its factorization.

1001414221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505970.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 1001414221 is about 31645.1294988660. The cubic root of 1001414221 is about 1000.4711849499.

Adding to 1001414221 its reverse (1224141001), we get a palindrome (2225555222).

The spelling of 1001414221 in words is "one billion, one million, four hundred fourteen thousand, two hundred twenty-one".

Divisors: 1 1987 503983 1001414221