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713126440 = 235131371397
BaseRepresentation
bin101010100000010…
…111001000101000
31211200212120120101
4222200113020220
52430030021230
6154432435144
723446321555
oct5240271050
91750776511
10713126440
113365a54a4
1217a9a8ab4
13b4987010
146a9d3a2c
1542916aca
hex2a817228

713126440 has 32 divisors (see below), whose sum is σ = 1727961480. Its totient is φ = 263308032.

The previous prime is 713126437. The next prime is 713126461. The reversal of 713126440 is 44621317.

It can be written as a sum of positive squares in 4 ways, for example, as 564822756 + 148303684 = 23766^2 + 12178^2 .

It is a junction number, because it is equal to n+sod(n) for n = 713126399 and 713126408.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 685179 + ... + 686218.

Almost surely, 2713126440 is an apocalyptic number.

It is an amenable number.

713126440 is an abundant number, since it is smaller than the sum of its proper divisors (1014835040).

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

713126440 is a wasteful number, since it uses less digits than its factorization.

713126440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1371421 (or 1371417 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 713126440 is about 26704.4273482881. The cubic root of 713126440 is about 893.4196761920.

Adding to 713126440 its reverse (44621317), we get a palindrome (757747757).

The spelling of 713126440 in words is "seven hundred thirteen million, one hundred twenty-six thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 104 130 260 520 1371397 2742794 5485588 6856985 10971176 13713970 17828161 27427940 35656322 54855880 71312644 89140805 142625288 178281610 356563220 713126440