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826080231510421 = 6612623747632853
BaseRepresentation
bin1011101111010100001100101…
…0110000010101000110010101
311000022220111110200021022102121
42323311003022300111012111
51331233444303231313141
612044532004102535541
7336000220140666136
oct27365031260250625
94008814420238377
10826080231510421
1121a23a727902a88
1278797a721375b1
13295c30544b1a34
14107dc6d46ddc8d
156578398a2a1d1
hex2ef50cac15195

826080231510421 has 8 divisors (see below), whose sum is σ = 827361524992824. Its totient is φ = 824799033347520.

The previous prime is 826080231510389. The next prime is 826080231510449. The reversal of 826080231510421 is 124015132080628.

It can be written as a sum of positive squares in 4 ways, for example, as 70544292874225 + 755535938636196 = 8399065^2 + 27487014^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 826080231510421 - 25 = 826080231510389 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 (826080231580421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6473770 + ... + 41159083.

It is an arithmetic number, because the mean of its divisors is an integer number (103420190624103).

Almost surely, 2826080231510421 is an apocalyptic number.

It is an amenable number.

826080231510421 is a deficient number, since it is larger than the sum of its proper divisors (1281293482403).

826080231510421 is a wasteful number, since it uses less digits than its factorization.

826080231510421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47659751.

The product of its (nonzero) digits is 184320, while the sum is 43.

The spelling of 826080231510421 in words is "eight hundred twenty-six trillion, eighty billion, two hundred thirty-one million, five hundred ten thousand, four hundred twenty-one".

Divisors: 1 661 26237 17342657 47632853 31485315833 1249743164161 826080231510421