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74305479 = 3236716073
BaseRepresentation
bin1000110110111…
…00111111000111
312011211002221210
410123130333013
5123010233404
611212342503
71561405023
oct433347707
9164732853
1074305479
1138a41896
1220a74a33
1312518451
149c23383
1567cb689
hex46dcfc7

74305479 has 16 divisors (see below), whose sum is σ = 104931072. Its totient is φ = 46673088.

The previous prime is 74305463. The next prime is 74305493. The reversal of 74305479 is 97450347.

It is not a de Polignac number, because 74305479 - 24 = 74305463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74309479) 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 15 ways as a sum of consecutive naturals, for example, 3414 + ... + 12659.

It is an arithmetic number, because the mean of its divisors is an integer number (6558192).

Almost surely, 274305479 is an apocalyptic number.

74305479 is a deficient number, since it is larger than the sum of its proper divisors (30625593).

74305479 is a wasteful number, since it uses less digits than its factorization.

74305479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16166.

The product of its (nonzero) digits is 105840, while the sum is 39.

The square root of 74305479 is about 8620.0625867798. The cubic root of 74305479 is about 420.4105565936.

The spelling of 74305479 in words is "seventy-four million, three hundred five thousand, four hundred seventy-nine".

Divisors: 1 3 23 67 69 201 1541 4623 16073 48219 369679 1076891 1109037 3230673 24768493 74305479