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74019289 = 315094691
BaseRepresentation
bin1000110100101…
…11000111011001
312011021120101011
410122113013121
5122422104124
611202253521
71556103451
oct432270731
9164246334
1074019289
1138866873
12209572a1
13124480c6
149b8ad61
156771994
hex46971d9

74019289 has 8 divisors (see below), whose sum is σ = 76573440. Its totient is φ = 71475600.

The previous prime is 74019271. The next prime is 74019293. The reversal of 74019289 is 98291047.

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

It is a cyclic number.

It is not a de Polignac number, because 74019289 - 27 = 74019161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74019259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13434 + ... + 18124.

It is an arithmetic number, because the mean of its divisors is an integer number (9571680).

Almost surely, 274019289 is an apocalyptic number.

It is an amenable number.

74019289 is a deficient number, since it is larger than the sum of its proper divisors (2554151).

74019289 is a wasteful number, since it uses less digits than its factorization.

74019289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5231.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 74019289 is about 8603.4463443436. The cubic root of 74019289 is about 419.8701204604.

The spelling of 74019289 in words is "seventy-four million, nineteen thousand, two hundred eighty-nine".

Divisors: 1 31 509 4691 15779 145421 2387719 74019289