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74227761 = 3243191803
BaseRepresentation
bin1000110110010…
…10000000110001
312011200011100100
410123022000301
5123000242021
611210543013
71560632316
oct433120061
9164604310
1074227761
1138999463
1220a37a69
13124bbc6a
149c02d0d
1567b3626
hex46ca031

74227761 has 12 divisors (see below), whose sum is σ = 109711888. Its totient is φ = 48334104.

The previous prime is 74227709. The next prime is 74227771. The reversal of 74227761 is 16772247.

It is a happy number.

It is not a de Polignac number, because 74227761 - 27 = 74227633 is a prime.

It is a super-3 number, since 3×742277613 (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74227771) 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, 95515 + ... + 96288.

Almost surely, 274227761 is an apocalyptic number.

It is an amenable number.

74227761 is a deficient number, since it is larger than the sum of its proper divisors (35484127).

74227761 is a wasteful number, since it uses less digits than its factorization.

74227761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191852 (or 191849 counting only the distinct ones).

The product of its digits is 32928, while the sum is 36.

The square root of 74227761 is about 8615.5534355026. The cubic root of 74227761 is about 420.2639327464.

The spelling of 74227761 in words is "seventy-four million, two hundred twenty-seven thousand, seven hundred sixty-one".

Divisors: 1 3 9 43 129 387 191803 575409 1726227 8247529 24742587 74227761