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74106284 = 2272646653
BaseRepresentation
bin1000110101011…
…00010110101100
312011102222201012
410122230112230
5122432400114
611204204352
71556615210
oct432542654
9164388635
1074106284
113891616a
12209996b8
1312478895
149bb0940
15678c63e
hex46ac5ac

74106284 has 12 divisors (see below), whose sum is σ = 148212624. Its totient is φ = 31759824.

The previous prime is 74106283. The next prime is 74106313. The reversal of 74106284 is 48260147.

74106284 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 74106284.

It is not an unprimeable number, because it can be changed into a prime (74106283) 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, 1323299 + ... + 1323354.

It is an arithmetic number, because the mean of its divisors is an integer number (12351052).

Almost surely, 274106284 is an apocalyptic number.

It is an amenable number.

74106284 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74106284 is a wasteful number, since it uses less digits than its factorization.

74106284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2646664 (or 2646662 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 74106284 is about 8608.5006824650. The cubic root of 74106284 is about 420.0345474227.

The spelling of 74106284 in words is "seventy-four million, one hundred six thousand, two hundred eighty-four".

Divisors: 1 2 4 7 14 28 2646653 5293306 10586612 18526571 37053142 74106284