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312100112000033 = 7217521719136281
BaseRepresentation
bin100011011110110100111100…
…0010011110110010000100001
31111221001110221102102020001122
41012331221320103312100201
5311401422012133000113
63023440451225542025
7122511326502452600
oct10675517023662041
91457043842366048
10312100112000033
1190498a06877735
122b007114044915
131051bbb6889936
14570da242aba37
15261369073e408
hex11bda784f6421

312100112000033 has 24 divisors (see below), whose sum is σ = 385149256823304. Its totient is φ = 251294981683200.

The previous prime is 312100111999993. The next prime is 312100112000099. The reversal of 312100112000033 is 330000211001213.

It can be written as a sum of positive squares in 4 ways, for example, as 141976923975649 + 170123188024384 = 11915407^2 + 13043128^2 .

It is not a de Polignac number, because 312100112000033 - 242 = 307702065488929 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312100111999975 and 312100112000020.

It is not an unprimeable number, because it can be changed into a prime (312100112300033) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 359134148 + ... + 360002133.

It is an arithmetic number, because the mean of its divisors is an integer number (16047885700971).

Almost surely, 2312100112000033 is an apocalyptic number.

It is an amenable number.

312100112000033 is a deficient number, since it is larger than the sum of its proper divisors (73049144823271).

312100112000033 is a wasteful number, since it uses less digits than its factorization.

312100112000033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719136833 (or 719136826 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 312100112000033 its reverse (330000211001213), we get a palindrome (642100323001246).

The spelling of 312100112000033 in words is "three hundred twelve trillion, one hundred billion, one hundred twelve million, thirty-three", and thus it is an aban number.

Divisors: 1 7 17 49 119 521 833 3647 8857 25529 61999 433993 719136281 5033953967 12225316777 35237677769 85577217439 374670002401 599040522073 2622690016807 6369390040817 18358830117649 44585730285719 312100112000033