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717080672 = 257111721953
BaseRepresentation
bin101010101111011…
…100100001100000
31211222022110202102
4222233130201200
52432033040142
6155053305532
723525041130
oct5257344140
91758273672
10717080672
11338856360
121801952a8
13b573cab9
146b342ac0
1542e48532
hex2abdc860

717080672 has 288 divisors, whose sum is σ = 2005274880. Its totient is φ = 244408320.

The previous prime is 717080671. The next prime is 717080687. The reversal of 717080672 is 276080717.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (717080671) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13529798 + ... + 13529850.

It is an arithmetic number, because the mean of its divisors is an integer number (6962760).

Almost surely, 2717080672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 717080672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1002637440).

717080672 is an abundant number, since it is smaller than the sum of its proper divisors (1288194208).

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

717080672 is a wasteful number, since it uses less digits than its factorization.

717080672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134 (or 109 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 38.

The square root of 717080672 is about 26778.3620111462. The cubic root of 717080672 is about 895.0679481927.

The spelling of 717080672 in words is "seven hundred seventeen million, eighty thousand, six hundred seventy-two".