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471039493 = 31710871367
BaseRepresentation
bin11100000100110…
…111111000000101
31012211100021201011
4130010313320011
51431041230433
6114424002221
714446524661
oct3404677005
91184307634
10471039493
11221986a41
12111900371
13767852c2
14467b78a1
152b5473cd
hex1c137e05

471039493 has 8 divisors (see below), whose sum is σ = 473306112. Its totient is φ = 468778416.

The previous prime is 471039487. The next prime is 471039509. The reversal of 471039493 is 394930174.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 471039493 - 217 = 470908421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (471039403) 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, 343896 + ... + 345262.

It is an arithmetic number, because the mean of its divisors is an integer number (59163264).

Almost surely, 2471039493 is an apocalyptic number.

It is an amenable number.

471039493 is a deficient number, since it is larger than the sum of its proper divisors (2266619).

471039493 is a wasteful number, since it uses less digits than its factorization.

471039493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2771.

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 471039493 is about 21703.4442658303. Note that the first 3 decimals coincide. The cubic root of 471039493 is about 778.0707818182.

The spelling of 471039493 in words is "four hundred seventy-one million, thirty-nine thousand, four hundred ninety-three".

Divisors: 1 317 1087 1367 344579 433339 1485929 471039493