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311101000030 = 25311003551613
BaseRepresentation
bin1001000011011110001…
…00001000100101011110
31002202000011102020222101
410201233010020211132
520044113324000110
6354530130035314
731322241604042
oct4415704104536
91082004366871
10311101000030
1110aa34449997
1250363118b3a
132344b959c92
14110b35c4022
15815c04e13a
hex486f10895e

311101000030 has 16 divisors (see below), whose sum is σ = 578045729664. Its totient is φ = 120426193440.

The previous prime is 311100999983. The next prime is 311101000033. The reversal of 311101000030 is 30000101113.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 311100999980 and 311101000016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311101000033) 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 7 ways as a sum of consecutive naturals, for example, 501775497 + ... + 501776116.

It is an arithmetic number, because the mean of its divisors is an integer number (36127858104).

Almost surely, 2311101000030 is an apocalyptic number.

311101000030 is a deficient number, since it is larger than the sum of its proper divisors (266944729634).

311101000030 is a wasteful number, since it uses less digits than its factorization.

311101000030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1003551651.

The product of its (nonzero) digits is 9, while the sum is 10.

Adding to 311101000030 its reverse (30000101113), we get a palindrome (341101101143).

The spelling of 311101000030 in words is "three hundred eleven billion, one hundred one million, thirty", and thus it is an aban number.

Divisors: 1 2 5 10 31 62 155 310 1003551613 2007103226 5017758065 10035516130 31110100003 62220200006 155550500015 311101000030