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318585585868 = 221113015565397
BaseRepresentation
bin1001010001011010010…
…11100100000011001100
31010110022202222121120021
410220231023210003030
520204430402221433
6402204534431524
732005563541024
oct4505513440314
91113282877507
10318585585868
11113125292020
12518b18025a4
132407247bcb4
14115c3642a84
15844918922d
hex4a2d2e40cc

318585585868 has 24 divisors (see below), whose sum is σ = 608676448464. Its totient is φ = 144700296000.

The previous prime is 318585585803. The next prime is 318585585953. The reversal of 318585585868 is 868585585813.

It is a junction number, because it is equal to n+sod(n) for n = 318585585797 and 318585585806.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2725455 + ... + 2839942.

It is an arithmetic number, because the mean of its divisors is an integer number (25361518686).

Almost surely, 2318585585868 is an apocalyptic number.

It is an amenable number.

318585585868 is a deficient number, since it is larger than the sum of its proper divisors (290090862596).

318585585868 is a wasteful number, since it uses less digits than its factorization.

318585585868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5566713 (or 5566711 counting only the distinct ones).

The product of its digits is 368640000, while the sum is 70.

Subtracting 318585585868 from its reverse (868585585813), we obtain a palindrome (549999999945).

It can be divided in two parts, 3185855 and 85868, that added together give a palindrome (3271723).

The spelling of 318585585868 in words is "three hundred eighteen billion, five hundred eighty-five million, five hundred eighty-five thousand, eight hundred sixty-eight".

Divisors: 1 2 4 11 22 44 1301 2602 5204 14311 28622 57244 5565397 11130794 22261588 61219367 122438734 244877468 7240581497 14481162994 28962325988 79646396467 159292792934 318585585868