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74848138 = 2317118057
BaseRepresentation
bin1000111011000…
…01011110001010
312012211200100021
410131201132022
5123130120023
611232131054
71566125101
oct435413612
9165750307
1074848138
1139282572
1221096a8a
1312678451
149d25038
15688735d
hex476178a

74848138 has 8 divisors (see below), whose sum is σ = 112627332. Its totient is φ = 37305696.

The previous prime is 74848097. The next prime is 74848139. The reversal of 74848138 is 83184847.

It can be written as a sum of positive squares in 2 ways, for example, as 74701449 + 146689 = 8643^2 + 383^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 74848094 and 74848103.

It is not an unprimeable number, because it can be changed into a prime (74848139) 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 3 ways as a sum of consecutive naturals, for example, 58395 + ... + 59662.

Almost surely, 274848138 is an apocalyptic number.

74848138 is a deficient number, since it is larger than the sum of its proper divisors (37779194).

74848138 is a wasteful number, since it uses less digits than its factorization.

74848138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118376.

The product of its digits is 172032, while the sum is 43.

The square root of 74848138 is about 8651.4818383905. The cubic root of 74848138 is about 421.4315061642.

The spelling of 74848138 in words is "seventy-four million, eight hundred forty-eight thousand, one hundred thirty-eight".

Divisors: 1 2 317 634 118057 236114 37424069 74848138