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74219113 = 673110281
BaseRepresentation
bin1000110110001…
…11111001101001
312011122201111001
410123013321221
5123000002423
611210435001
71560565153
oct433077151
9164581431
1074219113
1138992a11
1220a32a61
13124b8047
149bddad3
1567b0cad
hex46c7e69

74219113 has 4 divisors (see below), whose sum is σ = 74330068. Its totient is φ = 74108160.

The previous prime is 74219107. The next prime is 74219141. The reversal of 74219113 is 31191247.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31191247 = 67465541.

It can be written as a sum of positive squares in 2 ways, for example, as 22781529 + 51437584 = 4773^2 + 7172^2 .

It is a cyclic number.

It is not a de Polignac number, because 74219113 - 213 = 74210921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74219153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54468 + ... + 55813.

It is an arithmetic number, because the mean of its divisors is an integer number (18582517).

Almost surely, 274219113 is an apocalyptic number.

It is an amenable number.

74219113 is a deficient number, since it is larger than the sum of its proper divisors (110955).

74219113 is a wasteful number, since it uses less digits than its factorization.

74219113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110954.

The product of its digits is 1512, while the sum is 28.

The square root of 74219113 is about 8615.0515378609. The cubic root of 74219113 is about 420.2476109840.

The spelling of 74219113 in words is "seventy-four million, two hundred nineteen thousand, one hundred thirteen".

Divisors: 1 673 110281 74219113