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685410488441 = 7295450361949
BaseRepresentation
bin10011111100101011010…
…01100001000001111001
32102112011102202102022222
421332111221201001321
542212210041112231
61242512341253425
7100343053011260
oct11762551410171
92375142672288
10685410488441
11244754396728
12b0a06704275
134c831995473
14252618155d7
1512c6832927b
hex9f95a61079

685410488441 has 16 divisors (see below), whose sum is σ = 810365472000. Its totient is φ = 567216702528.

The previous prime is 685410488419. The next prime is 685410488447. The reversal of 685410488441 is 144884014586.

It is a happy number.

685410488441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 685410488441 - 210 = 685410487417 is a prime.

It is a super-2 number, since 2×6854104884412 (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (685410488447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11033135 + ... + 11095083.

It is an arithmetic number, because the mean of its divisors is an integer number (50647842000).

Almost surely, 2685410488441 is an apocalyptic number.

It is an amenable number.

685410488441 is a deficient number, since it is larger than the sum of its proper divisors (124954983559).

685410488441 is a wasteful number, since it uses less digits than its factorization.

685410488441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116488.

The product of its (nonzero) digits is 3932160, while the sum is 53.

The spelling of 685410488441 in words is "six hundred eighty-five billion, four hundred ten million, four hundred eighty-eight thousand, four hundred forty-one".

Divisors: 1 7 29 203 54503 61949 381521 433643 1580587 1796521 11064109 12575647 3376406347 23634844429 97915784063 685410488441