Search a number
-
+
74224780 = 2257530177
BaseRepresentation
bin1000110110010…
…01010010001100
312011200000020221
410123021102030
5123000143110
611210521124
71560620530
oct433112214
9164600227
1074224780
11389971a3
1220a361a4
13124ba7b6
149c01bc0
1567b27da
hex46c948c

74224780 has 24 divisors (see below), whose sum is σ = 178139808. Its totient is φ = 25448448.

The previous prime is 74224747. The next prime is 74224781. The reversal of 74224780 is 8742247.

It is not an unprimeable number, because it can be changed into a prime (74224781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 264949 + ... + 265228.

It is an arithmetic number, because the mean of its divisors is an integer number (7422492).

Almost surely, 274224780 is an apocalyptic number.

74224780 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

74224780 is an abundant number, since it is smaller than the sum of its proper divisors (103915028).

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

74224780 is a wasteful number, since it uses less digits than its factorization.

74224780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530193 (or 530191 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 34.

The square root of 74224780 is about 8615.3804326913. The cubic root of 74224780 is about 420.2583067131.

The spelling of 74224780 in words is "seventy-four million, two hundred twenty-four thousand, seven hundred eighty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 530177 1060354 2120708 2650885 3711239 5301770 7422478 10603540 14844956 18556195 37112390 74224780