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470247128 = 23134521607
BaseRepresentation
bin11100000001110…
…110011011011000
31012202212000210022
4130001312123120
51430340402003
6114355010012
714440014611
oct3401663330
91182760708
10470247128
1122149569a
12111599908
1376568750
144664cc08
152b43c738
hex1c0766d8

470247128 has 16 divisors (see below), whose sum is σ = 949537680. Its totient is φ = 217037088.

The previous prime is 470247073. The next prime is 470247139. The reversal of 470247128 is 821742074.

It is a happy number.

It is a super-2 number, since 2×4702471282 = 442264722784496768, which contains 22 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2260700 + ... + 2260907.

It is an arithmetic number, because the mean of its divisors is an integer number (59346105).

Almost surely, 2470247128 is an apocalyptic number.

It is an amenable number.

470247128 is an abundant number, since it is smaller than the sum of its proper divisors (479290552).

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

470247128 is a wasteful number, since it uses less digits than its factorization.

470247128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4521626 (or 4521622 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 35.

The square root of 470247128 is about 21685.1822219690. The cubic root of 470247128 is about 777.6342564447.

The spelling of 470247128 in words is "four hundred seventy million, two hundred forty-seven thousand, one hundred twenty-eight".

Divisors: 1 2 4 8 13 26 52 104 4521607 9043214 18086428 36172856 58780891 117561782 235123564 470247128