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472231389420 = 2233572327719609
BaseRepresentation
bin1101101111100110010…
…11110010100011101100
31200010220121200010201000
412313303023302203230
530214112213430140
61000535021320300
746055222403120
oct6676313624354
91603817603630
10472231389420
111722aa34335a
1277631406090
13356ba15785b
1418bdb2a7580
15c43cd76a30
hex6df32f28ec

472231389420 has 384 divisors, whose sum is σ = 1758461644800. Its totient is φ = 102867646464.

The previous prime is 472231389403. The next prime is 472231389451. The reversal of 472231389420 is 24983132274.

472231389420 is a `hidden beast` number, since 4 + 7 + 223 + 1 + 389 + 42 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 24072576 + ... + 24092184.

It is an arithmetic number, because the mean of its divisors is an integer number (4579327200).

Almost surely, 2472231389420 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 472231389420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (879230822400).

472231389420 is an abundant number, since it is smaller than the sum of its proper divisors (1286230255380).

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

472231389420 is a wasteful number, since it uses less digits than its factorization.

472231389420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19934 (or 19926 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The spelling of 472231389420 in words is "four hundred seventy-two billion, two hundred thirty-one million, three hundred eighty-nine thousand, four hundred twenty".