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316576294493281 = 172163264212
BaseRepresentation
bin100011111111011001010100…
…1100100111101110001100001
31112111220101202021110221012121
41013332302221210331301201
5312443241222342241111
63041145050355224241
7123452611461046234
oct10776625144756141
91474811667427177
10316576294493281
1191964286129419
122b60a7345a8081
131078502a271774
14582653553b41b
15268ed21388871
hex11feca993dc61

316576294493281 has 27 divisors (see below), whose sum is σ = 338422364546553. Its totient is φ = 296080101498240.

The previous prime is 316576294493233. The next prime is 316576294493321. The reversal of 316576294493281 is 182394492675613.

The square root of 316576294493281 is 17792591.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 1303741494225 + 315272552999056 = 1141815^2 + 17755916^2 .

It is not a de Polignac number, because 316576294493281 - 215 = 316576294460513 is a prime.

It is a super-2 number, since 2×3165762944932812 (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 316576294493281.

It is not an unprimeable number, because it can be changed into a prime (316576294493881) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 49303266451 + ... + 49303272871.

Almost surely, 2316576294493281 is an apocalyptic number.

316576294493281 is the 17792591-st square number.

316576294493281 is the 8896296-th centered octagonal number.

It is an amenable number.

316576294493281 is a deficient number, since it is larger than the sum of its proper divisors (21846070053272).

316576294493281 is an frugal number, since it uses more digits than its factorization.

316576294493281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13202 (or 6601 counting only the distinct ones).

The product of its digits is 470292480, while the sum is 70.

The spelling of 316576294493281 in words is "three hundred sixteen trillion, five hundred seventy-six billion, two hundred ninety-four million, four hundred ninety-three thousand, two hundred eighty-one".

Divisors: 1 17 163 289 2771 6421 26569 47107 109157 451673 1046623 1855669 7678441 17792591 41229241 170599549 302474047 700897097 2900192333 6720366283 11915250649 49303269661 114246226811 1095419704129 1942185855787 18622134970193 316576294493281