Search a number
-
+
74442852 = 223211187987
BaseRepresentation
bin1000110111111…
…10100001100100
312012002002101200
410123332201210
5123024132402
611215322500
71562516361
oct433764144
9165062350
1074442852
1139026020
1220b20430
1312565b33
149c5b468
15680721c
hex46fe864

74442852 has 36 divisors (see below), whose sum is σ = 205282896. Its totient is φ = 22558320.

The previous prime is 74442833. The next prime is 74442857. The reversal of 74442852 is 25824447.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (74442857) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 93598 + ... + 94389.

Almost surely, 274442852 is an apocalyptic number.

It is an amenable number.

74442852 is an abundant number, since it is smaller than the sum of its proper divisors (130840044).

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

74442852 is a wasteful number, since it uses less digits than its factorization.

74442852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188008 (or 188003 counting only the distinct ones).

The product of its digits is 71680, while the sum is 36.

The square root of 74442852 is about 8628.0271209588. The cubic root of 74442852 is about 420.6694765107.

It can be divided in two parts, 7444 and 2852, that added together give a triangular number (10296 = T143).

The spelling of 74442852 in words is "seventy-four million, four hundred forty-two thousand, eight hundred fifty-two".

Divisors: 1 2 3 4 6 9 11 12 18 22 33 36 44 66 99 132 198 396 187987 375974 563961 751948 1127922 1691883 2067857 2255844 3383766 4135714 6203571 6767532 8271428 12407142 18610713 24814284 37221426 74442852