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717488045 = 5260955001
BaseRepresentation
bin101010110000111…
…111111110101101
31212000002011120022
4222300333332231
52432134104140
6155110131525
723531355611
oct5260777655
91760064508
10717488045
1133900442a
12180350ba5
13b5853351
146b40b341
1542ec90b5
hex2ac3ffad

717488045 has 8 divisors (see below), whose sum is σ = 861331320. Its totient is φ = 573760000.

The previous prime is 717488011. The next prime is 717488063. The reversal of 717488045 is 540884717.

It can be written as a sum of positive squares in 4 ways, for example, as 212521 + 717275524 = 461^2 + 26782^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 717488045 - 28 = 717487789 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 717487987 and 717488005.

It is a congruent number.

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, 14456 + ... + 40545.

It is an arithmetic number, because the mean of its divisors is an integer number (107666415).

Almost surely, 2717488045 is an apocalyptic number.

It is an amenable number.

717488045 is a deficient number, since it is larger than the sum of its proper divisors (143843275).

717488045 is a wasteful number, since it uses less digits than its factorization.

717488045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57615.

The product of its (nonzero) digits is 250880, while the sum is 44.

The square root of 717488045 is about 26785.9673149954. The cubic root of 717488045 is about 895.2374119194.

The spelling of 717488045 in words is "seven hundred seventeen million, four hundred eighty-eight thousand, forty-five".

Divisors: 1 5 2609 13045 55001 275005 143497609 717488045