Search a number
-
+
74868379 = 1931791609
BaseRepresentation
bin1000111011001…
…10011010011011
312012212201002221
410131212122123
5123131242004
611232404511
71566241105
oct435463233
9165781087
1074868379
11392967a3
12210a6737
1312684721
149d2c575
15688d354
hex476669b

74868379 has 16 divisors (see below), whose sum is σ = 82432000. Its totient is φ = 67728960.

The previous prime is 74868359. The next prime is 74868389. The reversal of 74868379 is 97386847.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 74868379 - 25 = 74868347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74868359) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45727 + ... + 47335.

It is an arithmetic number, because the mean of its divisors is an integer number (5152000).

Almost surely, 274868379 is an apocalyptic number.

74868379 is a gapful number since it is divisible by the number (79) formed by its first and last digit.

74868379 is a deficient number, since it is larger than the sum of its proper divisors (7563621).

74868379 is a wasteful number, since it uses less digits than its factorization.

74868379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1738.

The product of its digits is 2032128, while the sum is 52.

The square root of 74868379 is about 8652.6515589153. The cubic root of 74868379 is about 421.4694916395.

The spelling of 74868379 in words is "seventy-four million, eight hundred sixty-eight thousand, three hundred seventy-nine".

Divisors: 1 19 31 79 589 1501 1609 2449 30571 46531 49879 127111 947701 2415109 3940441 74868379