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314206212681 = 321722923792
BaseRepresentation
bin1001001001010000010…
…01100101001001001001
31010001000120102101221100
410210220021211021021
520121443242301211
6400202213332013
731462215512124
oct4445011451111
91101016371840
10314206212681
11111288241139
1250a8b037009
132382508b80a
14112c9b773bb
15828e977156
hex4928265249

314206212681 has 81 divisors (see below), whose sum is σ = 500640183381. Its totient is φ = 189848510208.

The previous prime is 314206212679. The next prime is 314206212721. The reversal of 314206212681 is 186212602413.

It is a happy number.

The square root of 314206212681 is 560541.

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

314206212681 is a `hidden beast` number, since 3 + 1 + 4 + 2 + 0 + 621 + 26 + 8 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 31058775225 + 283147437456 = 176235^2 + 532116^2 .

It is not a de Polignac number, because 314206212681 - 21 = 314206212679 is a prime.

It is a super-2 number, since 2×3142062126812 (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (314206212631) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 829039950 + ... + 829040328.

Almost surely, 2314206212681 is an apocalyptic number.

314206212681 is the 560541-st square number.

314206212681 is the 280271-st centered octagonal number.

It is an amenable number.

314206212681 is a deficient number, since it is larger than the sum of its proper divisors (186433970700).

314206212681 is an equidigital number, since it uses as much as digits as its factorization.

314206212681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856 (or 428 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

Multiplying 314206212681 by its sum of digits (36), we get a square (11311423656516 = 33632462).

The spelling of 314206212681 in words is "three hundred fourteen billion, two hundred six million, two hundred twelve thousand, six hundred eighty-one".

Divisors: 1 3 9 17 29 51 87 153 261 289 379 493 841 867 1137 1479 2523 2601 3411 4437 6443 7569 8381 10991 14297 19329 25143 32973 42891 57987 75429 98919 109531 128673 143641 186847 243049 318739 328593 430923 560541 729147 956217 985779 1292769 1681623 2187441 2441897 2868651 3176399 4165589 5418563 7325691 9529197 12496767 16255689 21977073 28587591 37490301 41512249 48767067 70815013 92115571 120802081 124536747 212445039 276346713 362406243 373610241 637335117 829040139 1087218729 1203855221 2053635377 3611565663 6160906131 10834696989 18482718393 34911801409 104735404227 314206212681