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74106213 = 31719312467
BaseRepresentation
bin1000110101011…
…00010101100101
312011102222121120
410122230111211
5122432344323
611204204153
71556615046
oct432542545
9164388546
1074106213
1138916105
1220999659
131247883c
149bb08cd
15678c5e3
hex46ac565

74106213 has 32 divisors (see below), whose sum is σ = 113725440. Its totient is φ = 42612480.

The previous prime is 74106203. The next prime is 74106217. The reversal of 74106213 is 31260147.

It is not a de Polignac number, because 74106213 - 28 = 74105957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74106217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28806 + ... + 31272.

It is an arithmetic number, because the mean of its divisors is an integer number (3553920).

Almost surely, 274106213 is an apocalyptic number.

It is an amenable number.

74106213 is a deficient number, since it is larger than the sum of its proper divisors (39619227).

74106213 is a wasteful number, since it uses less digits than its factorization.

74106213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2537.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 74106213 is about 8608.4965586332. The cubic root of 74106213 is about 420.0344132800.

The spelling of 74106213 in words is "seventy-four million, one hundred six thousand, two hundred thirteen".

Divisors: 1 3 17 19 31 51 57 93 323 527 589 969 1581 1767 2467 7401 10013 30039 41939 46873 76477 125817 140619 229431 796841 1300109 1453063 2390523 3900327 4359189 24702071 74106213