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74305206 = 23218122807
BaseRepresentation
bin1000110110111…
…00111010110110
312011211002120200
410123130322312
5123010231311
611212341330
71561404153
oct433347266
9164732520
1074305206
1138a41668
1220a74846
13125182a1
149c2322a
1567cb556
hex46dceb6

74305206 has 24 divisors (see below), whose sum is σ = 161891184. Its totient is φ = 24630480.

The previous prime is 74305183. The next prime is 74305223. The reversal of 74305206 is 60250347.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 74305206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8146 + ... + 14661.

It is an arithmetic number, because the mean of its divisors is an integer number (6745466).

Almost surely, 274305206 is an apocalyptic number.

74305206 is an abundant number, since it is smaller than the sum of its proper divisors (87585978).

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

74305206 is a wasteful number, since it uses less digits than its factorization.

74305206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22996 (or 22993 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 74305206 is about 8620.0467516134. The cubic root of 74305206 is about 420.4100417270.

The spelling of 74305206 in words is "seventy-four million, three hundred five thousand, two hundred six".

Divisors: 1 2 3 6 9 18 181 362 543 1086 1629 3258 22807 45614 68421 136842 205263 410526 4128067 8256134 12384201 24768402 37152603 74305206