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10000031101 = 55009181789
BaseRepresentation
bin10010101000000110…
…00101110101111101
3221210220211012210021
421110003011311331
5130440001443401
64332143212141
7502544601424
oct112403056575
927726735707
1010000031101
114271836415
121b30ba7051
13c349cb688
146ac1702bb
153d7db72a1
hex2540c5d7d

10000031101 has 4 divisors (see below), whose sum is σ = 10000267900. Its totient is φ = 9999794304.

The previous prime is 10000031099. The next prime is 10000031123. The reversal of 10000031101 is 10113000001.

It is a happy number.

10000031101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7576832025 + 2423199076 = 87045^2 + 49226^2 .

It is a cyclic number.

It is not a de Polignac number, because 10000031101 - 21 = 10000031099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10000031141) 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, 35886 + ... + 145903.

It is an arithmetic number, because the mean of its divisors is an integer number (2500066975).

Almost surely, 210000031101 is an apocalyptic number.

It is an amenable number.

10000031101 is a deficient number, since it is larger than the sum of its proper divisors (236799).

10000031101 is an equidigital number, since it uses as much as digits as its factorization.

10000031101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236798.

The product of its (nonzero) digits is 3, while the sum is 7.

Adding to 10000031101 its reverse (10113000001), we get a palindrome (20113031102).

The spelling of 10000031101 in words is "ten billion, thirty-one thousand, one hundred one".

Divisors: 1 55009 181789 10000031101