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682914440 = 235131313297
BaseRepresentation
bin101000101101000…
…111001010001000
31202121000122111102
4220231013022020
52344311230230
6151433120532
722631451125
oct5055071210
91677018442
10682914440
1132053a7aa
12170859148
13ab6396b0
14669ab74c
153ee4a045
hex28b47288

682914440 has 32 divisors (see below), whose sum is σ = 1654755480. Its totient is φ = 252152832.

The previous prime is 682914377. The next prime is 682914443. The reversal of 682914440 is 44419286.

It can be written as a sum of positive squares in 4 ways, for example, as 580135396 + 102779044 = 24086^2 + 10138^2 .

It is a junction number, because it is equal to n+sod(n) for n = 682914394 and 682914403.

It is not an unprimeable number, because it can be changed into a prime (682914443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 656129 + ... + 657168.

Almost surely, 2682914440 is an apocalyptic number.

It is an amenable number.

682914440 is an abundant number, since it is smaller than the sum of its proper divisors (971841040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

682914440 is a wasteful number, since it uses less digits than its factorization.

682914440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1313321 (or 1313317 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 682914440 is about 26132.6317082685. The cubic root of 682914440 is about 880.6204474345.

The spelling of 682914440 in words is "six hundred eighty-two million, nine hundred fourteen thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 104 130 260 520 1313297 2626594 5253188 6566485 10506376 13132970 17072861 26265940 34145722 52531880 68291444 85364305 136582888 170728610 341457220 682914440