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807768010481 = 4211918688861
BaseRepresentation
bin10111100000100101011…
…10011010111011110001
32212012222202000120002112
423300102232122323301
5101213302102313411
61415030011455105
7112234146541625
oct13602256327361
92765882016075
10807768010481
11291632a8aa73
12110673a57495
135b231414a93
142b14bcc1185
151602a264b8b
hexbc12b9aef1

807768010481 has 4 divisors (see below), whose sum is σ = 809686699764. Its totient is φ = 805849321200.

The previous prime is 807768010369. The next prime is 807768010519. The reversal of 807768010481 is 184010867708.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3768854881 + 803999155600 = 61391^2 + 896660^2 .

It is a cyclic number.

It is not a de Polignac number, because 807768010481 - 234 = 790588141297 is a prime.

It is a super-2 number, since 2×8077680104812 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (807768010781) 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, 959344010 + ... + 959344851.

It is an arithmetic number, because the mean of its divisors is an integer number (202421674941).

Almost surely, 2807768010481 is an apocalyptic number.

It is an amenable number.

807768010481 is a deficient number, since it is larger than the sum of its proper divisors (1918689283).

807768010481 is a wasteful number, since it uses less digits than its factorization.

807768010481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1918689282.

The product of its (nonzero) digits is 602112, while the sum is 50.

The spelling of 807768010481 in words is "eight hundred seven billion, seven hundred sixty-eight million, ten thousand, four hundred eighty-one".

Divisors: 1 421 1918688861 807768010481