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74045141 = 731014317
BaseRepresentation
bin1000110100111…
…01011011010101
312011022212211122
410122131123111
5122423421031
611203013325
71556242022
oct432353325
9164285748
1074045141
1138884235
122096a245
1312456ac1
149b96549
15677947b
hex469d6d5

74045141 has 4 divisors (see below), whose sum is σ = 75059532. Its totient is φ = 73030752.

The previous prime is 74045137. The next prime is 74045203. The reversal of 74045141 is 14154047.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14154047 = 17832591.

It can be written as a sum of positive squares in 2 ways, for example, as 33988900 + 40056241 = 5830^2 + 6329^2 .

It is a cyclic number.

It is not a de Polignac number, because 74045141 - 22 = 74045137 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 74045141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74045131) 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, 507086 + ... + 507231.

It is an arithmetic number, because the mean of its divisors is an integer number (18764883).

Almost surely, 274045141 is an apocalyptic number.

It is an amenable number.

74045141 is a deficient number, since it is larger than the sum of its proper divisors (1014391).

74045141 is a wasteful number, since it uses less digits than its factorization.

74045141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1014390.

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 74045141 is about 8604.9486343615. The cubic root of 74045141 is about 419.9189960939.

Adding to 74045141 its reverse (14154047), we get a palindrome (88199188).

The spelling of 74045141 in words is "seventy-four million, forty-five thousand, one hundred forty-one".

Divisors: 1 73 1014317 74045141