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471278489 = 11195938219
BaseRepresentation
bin11100000101110…
…010001110011001
31012211210102112212
4130011302032121
51431121402424
6114433044505
714451541523
oct3405621631
91184712485
10471278489
1122202a560
121119b6735
137683a016
144683aa13
152b59310e
hex1c172399

471278489 has 16 divisors (see below), whose sum is σ = 550368000. Its totient is φ = 398995920.

The previous prime is 471278459. The next prime is 471278503. The reversal of 471278489 is 984872174.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-471278489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (471278419) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6779 + ... + 31440.

It is an arithmetic number, because the mean of its divisors is an integer number (34398000).

Almost surely, 2471278489 is an apocalyptic number.

It is an amenable number.

471278489 is a deficient number, since it is larger than the sum of its proper divisors (79089511).

471278489 is a wasteful number, since it uses less digits than its factorization.

471278489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38308.

The product of its digits is 903168, while the sum is 50.

The square root of 471278489 is about 21708.9495139677. The cubic root of 471278489 is about 778.2023520765.

The spelling of 471278489 in words is "four hundred seventy-one million, two hundred seventy-eight thousand, four hundred eighty-nine".

Divisors: 1 11 19 59 209 649 1121 12331 38219 420409 726161 2254921 7987771 24804131 42843499 471278489