Search a number
-
+
74133340 = 22518731979
BaseRepresentation
bin1000110101100…
…10111101011100
312011111100211021
410122302331130
5122434231330
611204533524
71560060121
oct432627534
9164440737
1074133340
1138934526
12209b12a4
1312487ca8
149bba748
15679567a
hex46b2f5c

74133340 has 24 divisors (see below), whose sum is σ = 155841840. Its totient is φ = 29622528.

The previous prime is 74133337. The next prime is 74133341. The reversal of 74133340 is 4333147.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74133341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36471 + ... + 38449.

It is an arithmetic number, because the mean of its divisors is an integer number (6493410).

Almost surely, 274133340 is an apocalyptic number.

It is an amenable number.

74133340 is an abundant number, since it is smaller than the sum of its proper divisors (81708500).

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

74133340 is a wasteful number, since it uses less digits than its factorization.

74133340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3861 (or 3859 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 25.

The square root of 74133340 is about 8610.0720089904. The cubic root of 74133340 is about 420.0856590215.

Adding to 74133340 its reverse (4333147), we get a palindrome (78466487).

The spelling of 74133340 in words is "seventy-four million, one hundred thirty-three thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 1873 1979 3746 3958 7492 7916 9365 9895 18730 19790 37460 39580 3706667 7413334 14826668 18533335 37066670 74133340