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6810361290681 = 313672606338037
BaseRepresentation
bin110001100011010100100…
…1010100101111110111001
3220010001201210021101122120
41203012221022211332321
51343040104442300211
622252345313511453
71302014046555564
oct143065112457671
926101653241576
106810361290681
1121962924481a3
1291ba88272589
133a52a2b03cb0
141978a22834db
15bc246c01d06
hex631a92a5fb9

6810361290681 has 16 divisors (see below), whose sum is σ = 9924935248704. Its totient is φ = 4128439449024.

The previous prime is 6810361290641. The next prime is 6810361290709. The reversal of 6810361290681 is 1860921630186.

It is not a de Polignac number, because 6810361290681 - 210 = 6810361289657 is a prime.

It is a super-2 number, since 2×68103612906812 (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6810361290641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1303166406 + ... + 1303171631.

It is an arithmetic number, because the mean of its divisors is an integer number (620308453044).

Almost surely, 26810361290681 is an apocalyptic number.

It is an amenable number.

6810361290681 is a deficient number, since it is larger than the sum of its proper divisors (3114573958023).

6810361290681 is a wasteful number, since it uses less digits than its factorization.

6810361290681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2606338120.

The product of its (nonzero) digits is 746496, while the sum is 51.

The spelling of 6810361290681 in words is "six trillion, eight hundred ten billion, three hundred sixty-one million, two hundred ninety thousand, six hundred eighty-one".

Divisors: 1 3 13 39 67 201 871 2613 2606338037 7819014111 33882394481 101647183443 174624648479 523873945437 2270120430227 6810361290681