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74642214 = 2312440369
BaseRepresentation
bin1000111001011…
…11001100100110
312012110012212110
410130233030212
5123102022324
611223501450
71564306533
oct434571446
9165405773
1074642214
1139151889
1220bb7886
13126057ba
149cadd8a
156846329
hex472f326

74642214 has 8 divisors (see below), whose sum is σ = 149284440. Its totient is φ = 24880736.

The previous prime is 74642207. The next prime is 74642231. The reversal of 74642214 is 41224647.

It is a sphenic number, since it is the product of 3 distinct primes.

74642214 is an admirable number.

It is a super-2 number, since 2×746422142 = 11142920221643592, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6220179 + ... + 6220190.

It is an arithmetic number, because the mean of its divisors is an integer number (18660555).

Almost surely, 274642214 is an apocalyptic number.

74642214 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.

74642214 is a wasteful number, since it uses less digits than its factorization.

74642214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12440374.

The product of its digits is 10752, while the sum is 30.

The square root of 74642214 is about 8639.5725588712. The cubic root of 74642214 is about 421.0446670166.

The spelling of 74642214 in words is "seventy-four million, six hundred forty-two thousand, two hundred fourteen".

Divisors: 1 2 3 6 12440369 24880738 37321107 74642214