Search a number
-
+
74819272 = 23115711489
BaseRepresentation
bin1000111010110…
…10011011001000
312012210012202011
410131122123020
5123123204042
611231345304
71565644663
oct435323310
9165705664
1074819272
1139262910
1221082234
1312668278
149d186da
15687da17
hex475a6c8

74819272 has 32 divisors (see below), whose sum is σ = 153410400. Its totient is φ = 33926400.

The previous prime is 74819263. The next prime is 74819273. The reversal of 74819272 is 27291847.

It is not an unprimeable number, because it can be changed into a prime (74819273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49504 + ... + 50992.

It is an arithmetic number, because the mean of its divisors is an integer number (4794075).

Almost surely, 274819272 is an apocalyptic number.

It is an amenable number.

74819272 is an abundant number, since it is smaller than the sum of its proper divisors (78591128).

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

74819272 is a wasteful number, since it uses less digits than its factorization.

74819272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2077 (or 2073 counting only the distinct ones).

The product of its digits is 56448, while the sum is 40.

The square root of 74819272 is about 8649.8134083921. The cubic root of 74819272 is about 421.3773226472.

The spelling of 74819272 in words is "seventy-four million, eight hundred nineteen thousand, two hundred seventy-two".

Divisors: 1 2 4 8 11 22 44 88 571 1142 1489 2284 2978 4568 5956 6281 11912 12562 16379 25124 32758 50248 65516 131032 850219 1700438 3400876 6801752 9352409 18704818 37409636 74819272