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74874081 = 324958027
BaseRepresentation
bin1000111011001…
…11110011100001
312012212222221010
410131213303201
5123131432311
611232451133
71566263532
oct435476341
9165788833
1074874081
11392a0007
12210a9aa9
13126871b9
149d30689
15688eda6
hex4767ce1

74874081 has 4 divisors (see below), whose sum is σ = 99832112. Its totient is φ = 49916052.

The previous prime is 74874073. The next prime is 74874097. The reversal of 74874081 is 18047847.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 74874081 - 23 = 74874073 is a prime.

It is a super-2 number, since 2×748740812 = 11212256011189122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74874031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12479011 + ... + 12479016.

It is an arithmetic number, because the mean of its divisors is an integer number (24958028).

Almost surely, 274874081 is an apocalyptic number.

It is an amenable number.

74874081 is a deficient number, since it is larger than the sum of its proper divisors (24958031).

74874081 is a wasteful number, since it uses less digits than its factorization.

74874081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24958030.

The product of its (nonzero) digits is 50176, while the sum is 39.

The square root of 74874081 is about 8652.9810470150. The cubic root of 74874081 is about 421.4801911189.

The spelling of 74874081 in words is "seventy-four million, eight hundred seventy-four thousand, eighty-one".

Divisors: 1 3 24958027 74874081