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311021000100010 = 2531102100010001
BaseRepresentation
bin100011010110111110011100…
…0001110101000100010101010
31111210020022120020222212201101
41012231330320032220202222
5311231232002011200020
63021253024104512014
7122340345215605654
oct10655747016504252
91453208506885641
10311021000100010
11901122a128a392
122aa71b5377b60a
1310471201477345
1456b36d50296d4
1525e558398500a
hex11adf383a88aa

311021000100010 has 8 divisors (see below), whose sum is σ = 559837800180036. Its totient is φ = 124408400040000.

The previous prime is 311021000099921. The next prime is 311021000100011. The reversal of 311021000100010 is 10001000120113.

It can be written as a sum of positive squares in 2 ways, for example, as 262549620644689 + 48471379455321 = 16203383^2 + 6962139^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (10), and also a Moran number because the ratio is a prime number: 31102100010001 = 311021000100010 / (3 + 1 + 1 + 0 + 2 + 1 + 0 + 0 + 0 + 1 + 0 + 0 + 0 + 1 + 0).

It is a self number, because there is not a number n which added to its sum of digits gives 311021000100010.

It is not an unprimeable number, because it can be changed into a prime (311021000100011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15551050004991 + ... + 15551050005010.

Almost surely, 2311021000100010 is an apocalyptic number.

311021000100010 is a deficient number, since it is larger than the sum of its proper divisors (248816800080026).

311021000100010 is a wasteful number, since it uses less digits than its factorization.

311021000100010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31102100010008.

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

Adding to 311021000100010 its reverse (10001000120113), we get a palindrome (321022000220123).

The spelling of 311021000100010 in words is "three hundred eleven trillion, twenty-one billion, one hundred thousand, ten".

Divisors: 1 2 5 10 31102100010001 62204200020002 155510500050005 311021000100010