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472143420 = 2232572199269
BaseRepresentation
bin11100001001000…
…101011000111100
31012220102101000100
4130021011120330
51431332042140
6114503401100
714462103300
oct3411053074
91186371010
10472143420
11222570381
12112153190
1376a80908
14469c3d00
152b6b4530
hex1c24563c

472143420 has 216 divisors, whose sum is σ = 1680588000. Its totient is φ = 106977024.

The previous prime is 472143409. The next prime is 472143433. The reversal of 472143420 is 24341274.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1755046 + ... + 1755314.

It is an arithmetic number, because the mean of its divisors is an integer number (7780500).

Almost surely, 2472143420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 472143420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (840294000).

472143420 is an abundant number, since it is smaller than the sum of its proper divisors (1208444580).

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

472143420 is a wasteful number, since it uses less digits than its factorization.

472143420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497 (or 485 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 472143420 is about 21728.8614519951. The cubic root of 472143420 is about 778.6781358589.

Adding to 472143420 its reverse (24341274), we get a palindrome (496484694).

The spelling of 472143420 in words is "four hundred seventy-two million, one hundred forty-three thousand, four hundred twenty".