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74808243 = 329785691
BaseRepresentation
bin1000111010101…
…11101110110011
312012202122121200
410131113232303
5123122330433
611231222243
71565600556
oct435275663
9165678550
1074808243
11392555a4
1221077983
1312663243
149d1469d
15687a613
hex4757bb3

74808243 has 12 divisors (see below), whose sum is σ = 109171608. Its totient is φ = 49357440.

The previous prime is 74808241. The next prime is 74808257. The reversal of 74808243 is 34280847.

It is not a de Polignac number, because 74808243 - 21 = 74808241 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 74808198 and 74808207.

It is not an unprimeable number, because it can be changed into a prime (74808241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41973 + ... + 43718.

It is an arithmetic number, because the mean of its divisors is an integer number (9097634).

Almost surely, 274808243 is an apocalyptic number.

74808243 is a deficient number, since it is larger than the sum of its proper divisors (34363365).

74808243 is a wasteful number, since it uses less digits than its factorization.

74808243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85794 (or 85791 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 74808243 is about 8649.1758566929. The cubic root of 74808243 is about 421.3566167572.

The spelling of 74808243 in words is "seventy-four million, eight hundred eight thousand, two hundred forty-three".

Divisors: 1 3 9 97 291 873 85691 257073 771219 8312027 24936081 74808243