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100031001211 = 711797870879
BaseRepresentation
bin101110100101001001…
…1111111001001111011
3100120012022222100220201
41131022103333021323
53114330414014321
6113541551303031
710140601324021
oct1351223771173
9316168870821
10100031001211
113947198a839
121747821aa77
13958207535b
144bad210711
152906d10291
hex174a4ff27b

100031001211 has 8 divisors (see below), whose sum is σ = 102006604800. Its totient is φ = 98071139880.

The previous prime is 100031001157. The next prime is 100031001227. The reversal of 100031001211 is 112100130001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-100031001211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100031001281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3922731 + ... + 3948148.

It is an arithmetic number, because the mean of its divisors is an integer number (12750825600).

Almost surely, 2100031001211 is an apocalyptic number.

100031001211 is a deficient number, since it is larger than the sum of its proper divisors (1975603589).

100031001211 is an equidigital number, since it uses as much as digits as its factorization.

100031001211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7871129.

The product of its (nonzero) digits is 6, while the sum is 10.

Adding to 100031001211 its reverse (112100130001), we get a palindrome (212131131212).

The spelling of 100031001211 in words is "one hundred billion, thirty-one million, one thousand, two hundred eleven".

Divisors: 1 71 179 12709 7870879 558832409 1408887341 100031001211