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717243423 = 31318390857
BaseRepresentation
bin101010110000000…
…100010000011111
31211222121202000020
4222300010100133
52432103242143
6155101003223
723526316461
oct5260042037
91758552006
10717243423
11338957666
12180253513
13b5798bc0
146b386131
1542e7b883
hex2ac0441f

717243423 has 8 divisors (see below), whose sum is σ = 1029888048. Its totient is φ = 441380544.

The previous prime is 717243383. The next prime is 717243433. The reversal of 717243423 is 324342717.

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

It is not a de Polignac number, because 717243423 - 226 = 650134559 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (717243433) 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, 9195390 + ... + 9195467.

It is an arithmetic number, because the mean of its divisors is an integer number (128736006).

Almost surely, 2717243423 is an apocalyptic number.

717243423 is a deficient number, since it is larger than the sum of its proper divisors (312644625).

717243423 is a wasteful number, since it uses less digits than its factorization.

717243423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18390873.

The product of its digits is 28224, while the sum is 33.

The square root of 717243423 is about 26781.4006915247. The cubic root of 717243423 is about 895.1356589305.

The spelling of 717243423 in words is "seven hundred seventeen million, two hundred forty-three thousand, four hundred twenty-three".

Divisors: 1 3 13 39 18390857 55172571 239081141 717243423