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468992885481 = 32173065312977
BaseRepresentation
bin1101101001100100010…
…01111000001011101001
31122211112220212002110200
412310302021320023221
530140444134313411
6555241413102413
745612036515511
oct6646211701351
91584486762420
10468992885481
1117099829141a
1276a88927a09
13352c2227433
14189b1138841
15c2ed8bee56
hex6d322782e9

468992885481 has 12 divisors (see below), whose sum is σ = 717283236852. Its totient is φ = 294270045696.

The previous prime is 468992885479. The next prime is 468992885509. The reversal of 468992885481 is 184588299864.

468992885481 is a `hidden beast` number, since 4 + 68 + 9 + 9 + 2 + 8 + 85 + 481 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 287171661456 + 181821224025 = 535884^2 + 426405^2 .

It is not a de Polignac number, because 468992885481 - 21 = 468992885479 is a prime.

It is a super-2 number, since 2×4689928854812 (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (468992885401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1532656336 + ... + 1532656641.

It is an arithmetic number, because the mean of its divisors is an integer number (59773603071).

Almost surely, 2468992885481 is an apocalyptic number.

It is an amenable number.

468992885481 is a deficient number, since it is larger than the sum of its proper divisors (248290351371).

468992885481 is a wasteful number, since it uses less digits than its factorization.

468992885481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3065313000 (or 3065312997 counting only the distinct ones).

The product of its digits is 318504960, while the sum is 72.

The spelling of 468992885481 in words is "four hundred sixty-eight billion, nine hundred ninety-two million, eight hundred eighty-five thousand, four hundred eighty-one".

Divisors: 1 3 9 17 51 153 3065312977 9195938931 27587816793 52110320609 156330961827 468992885481