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73979053 = 174351709
BaseRepresentation
bin1000110100011…
…01010010101101
312011012112011221
410122031102231
5122414312203
611201343341
71555545241
oct432152255
9164175157
1073979053
1138839615
1220937b51
13124329b5
149b7a421
156764abd
hex468d4ad

73979053 has 4 divisors (see below), whose sum is σ = 78330780. Its totient is φ = 69627328.

The previous prime is 73979039. The next prime is 73979077. The reversal of 73979053 is 35097937.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35097937 = 75013991.

It can be written as a sum of positive squares in 2 ways, for example, as 61496964 + 12482089 = 7842^2 + 3533^2 .

It is a cyclic number.

It is not a de Polignac number, because 73979053 - 213 = 73970861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73979033) 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 3 ways as a sum of consecutive naturals, for example, 2175838 + ... + 2175871.

It is an arithmetic number, because the mean of its divisors is an integer number (19582695).

Almost surely, 273979053 is an apocalyptic number.

It is an amenable number.

73979053 is a deficient number, since it is larger than the sum of its proper divisors (4351727).

73979053 is a wasteful number, since it uses less digits than its factorization.

73979053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4351726.

The product of its (nonzero) digits is 178605, while the sum is 43.

The square root of 73979053 is about 8601.1076612260. The cubic root of 73979053 is about 419.7940278795.

The spelling of 73979053 in words is "seventy-three million, nine hundred seventy-nine thousand, fifty-three".

Divisors: 1 17 4351709 73979053