Search a number
-
+
42478487424 = 2733731371229
BaseRepresentation
bin100111100011111010…
…100100011110000000
311001122101202202002000
4213203322210132000
51143443443044144
631303033224000
73032441120442
oct474372443600
9131571682060
1042478487424
1117018aa935a
128295b62000
13400c6bbc79
1420ad81c492
1511893b3769
hex9e3ea4780

42478487424 has 256 divisors, whose sum is σ = 128119752000. Its totient is φ = 13852311552.

The previous prime is 42478487413. The next prime is 42478487449.

42478487424 is a `hidden beast` number, since 42 + 478 + 48 + 74 + 24 = 666.

42478487424 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34562842 + ... + 34564070.

Almost surely, 242478487424 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 42478487424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64059876000).

42478487424 is an abundant number, since it is smaller than the sum of its proper divisors (85641264576).

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

42478487424 is a wasteful number, since it uses less digits than its factorization.

42478487424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1462 (or 1444 counting only the distinct ones).

The product of its digits is 12845056, while the sum is 54.

The spelling of 42478487424 in words is "forty-two billion, four hundred seventy-eight million, four hundred eighty-seven thousand, four hundred twenty-four".