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472811830 = 2547281183
BaseRepresentation
bin11100001011101…
…000100100110110
31012221200022220021
4130023220210312
51432014434310
6114525555354
714500556101
oct3413504466
91187608807
10472811830
11222987587
12112415b5a
1376c55c1a
1446b19738
152b7975da
hex1c2e8936

472811830 has 8 divisors (see below), whose sum is σ = 851061312. Its totient is φ = 189124728.

The previous prime is 472811813. The next prime is 472811839. The reversal of 472811830 is 38118274.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (472811839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23640582 + ... + 23640601.

It is an arithmetic number, because the mean of its divisors is an integer number (106382664).

Almost surely, 2472811830 is an apocalyptic number.

472811830 is a deficient number, since it is larger than the sum of its proper divisors (378249482).

472811830 is a wasteful number, since it uses less digits than its factorization.

472811830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47281190.

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 472811830 is about 21744.2367076888. The cubic root of 472811830 is about 779.0454189148.

The spelling of 472811830 in words is "four hundred seventy-two million, eight hundred eleven thousand, eight hundred thirty".

Divisors: 1 2 5 10 47281183 94562366 236405915 472811830