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74214369 = 3261135181
BaseRepresentation
bin1000110110001…
…10101111100001
312011122110222100
410123012233201
5122444324434
611210401013
71560545265
oct433065741
9164573870
1074214369
113898a399
1220a30169
13124b5b38
149bdc0a5
1567ae699
hex46c6be1

74214369 has 12 divisors (see below), whose sum is σ = 108956692. Its totient is φ = 48664800.

The previous prime is 74214347. The next prime is 74214377. The reversal of 74214369 is 96341247.

It can be written as a sum of positive squares in 2 ways, for example, as 36759969 + 37454400 = 6063^2 + 6120^2 .

It is not a de Polignac number, because 74214369 - 25 = 74214337 is a prime.

It is a super-2 number, since 2×742143692 = 11015545132136322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (74214319) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67042 + ... + 68139.

Almost surely, 274214369 is an apocalyptic number.

It is an amenable number.

74214369 is a deficient number, since it is larger than the sum of its proper divisors (34742323).

74214369 is a wasteful number, since it uses less digits than its factorization.

74214369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135248 (or 135245 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 74214369 is about 8614.7762013879. The cubic root of 74214369 is about 420.2386568792.

The spelling of 74214369 in words is "seventy-four million, two hundred fourteen thousand, three hundred sixty-nine".

Divisors: 1 3 9 61 183 549 135181 405543 1216629 8246041 24738123 74214369