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74938361 = 671118483
BaseRepresentation
bin1000111011101…
…11011111111001
312020000021002212
410131313133321
5123141011421
611234104505
71566652121
oct435673771
9166007085
1074938361
1139334333
122111b135
13126aa534
149d49c81
1568a3e5b
hex47777f9

74938361 has 4 divisors (see below), whose sum is σ = 76056912. Its totient is φ = 73819812.

The previous prime is 74938333. The next prime is 74938387. The reversal of 74938361 is 16383947.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-74938361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74938321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 559175 + ... + 559308.

It is an arithmetic number, because the mean of its divisors is an integer number (19014228).

Almost surely, 274938361 is an apocalyptic number.

It is an amenable number.

74938361 is a deficient number, since it is larger than the sum of its proper divisors (1118551).

74938361 is a wasteful number, since it uses less digits than its factorization.

74938361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1118550.

The product of its digits is 108864, while the sum is 41.

The square root of 74938361 is about 8656.6945770311. The cubic root of 74938361 is about 421.6007713290.

The spelling of 74938361 in words is "seventy-four million, nine hundred thirty-eight thousand, three hundred sixty-one".

Divisors: 1 67 1118483 74938361