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74868130 = 2526712803
BaseRepresentation
bin1000111011001…
…10010110100010
312012212200202201
410131212112202
5123131240010
611232403414
71566240301
oct435462642
9165780681
1074868130
1139296597
12210a656a
131268458c
149d2c438
15688d23a
hex47665a2

74868130 has 16 divisors (see below), whose sum is σ = 134861184. Its totient is φ = 29925360.

The previous prime is 74868089. The next prime is 74868139. The reversal of 74868130 is 3186847.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 74868130.

It is not an unprimeable number, because it can be changed into a prime (74868139) 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, 25309 + ... + 28111.

It is an arithmetic number, because the mean of its divisors is an integer number (8428824).

Almost surely, 274868130 is an apocalyptic number.

74868130 is a deficient number, since it is larger than the sum of its proper divisors (59993054).

74868130 is a wasteful number, since it uses less digits than its factorization.

74868130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5481.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 74868130 is about 8652.6371702505. The cubic root of 74868130 is about 421.4690243927.

The spelling of 74868130 in words is "seventy-four million, eight hundred sixty-eight thousand, one hundred thirty".

Divisors: 1 2 5 10 2671 2803 5342 5606 13355 14015 26710 28030 7486813 14973626 37434065 74868130