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1001212007 = 3803263269
BaseRepresentation
bin111011101011010…
…100100001100111
32120202221211200012
4323223110201213
54022302241012
6243203240435
733545106305
oct7353244147
92522854605
101001212007
11474181444
1223b37911b
1312c572a53
1496d85275
155cd70622
hex3bad4867

1001212007 has 4 divisors (see below), whose sum is σ = 1001479080. Its totient is φ = 1000944936.

The previous prime is 1001211989. The next prime is 1001212013. The reversal of 1001212007 is 7002121001.

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

It is a cyclic number.

It is not a de Polignac number, because 1001212007 - 226 = 934103143 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1001211982 and 1001212000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001212067) 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, 127832 + ... + 135437.

It is an arithmetic number, because the mean of its divisors is an integer number (250369770).

Almost surely, 21001212007 is an apocalyptic number.

1001212007 is a deficient number, since it is larger than the sum of its proper divisors (267073).

1001212007 is an equidigital number, since it uses as much as digits as its factorization.

1001212007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267072.

The product of its (nonzero) digits is 28, while the sum is 14.

The square root of 1001212007 is about 31641.9343119222. The cubic root of 1001212007 is about 1000.4038392253.

Adding to 1001212007 its reverse (7002121001), we get a palindrome (8003333008).

The spelling of 1001212007 in words is "one billion, one million, two hundred twelve thousand, seven".

Divisors: 1 3803 263269 1001212007