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73074429 = 328991229
BaseRepresentation
bin1000101101100…
…00011011111101
312002111120021100
410112300123331
5122201340204
611130123313
71545056661
oct426603375
9162446240
1073074429
113828099a
1220580539
13121a700c
1499c28a1
156636a39
hex45b06fd

73074429 has 12 divisors (see below), whose sum is σ = 106739100. Its totient is φ = 48168384.

The previous prime is 73074413. The next prime is 73074451. The reversal of 73074429 is 92447037.

It can be written as a sum of positive squares in 2 ways, for example, as 51451929 + 21622500 = 7173^2 + 4650^2 .

It is not a de Polignac number, because 73074429 - 24 = 73074413 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 73074393 and 73074402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73074479) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44814 + ... + 46415.

It is an arithmetic number, because the mean of its divisors is an integer number (8894925).

Almost surely, 273074429 is an apocalyptic number.

It is an amenable number.

73074429 is a deficient number, since it is larger than the sum of its proper divisors (33664671).

73074429 is a wasteful number, since it uses less digits than its factorization.

73074429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91324 (or 91321 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 73074429 is about 8548.3582634328. The cubic root of 73074429 is about 418.0759097656.

The spelling of 73074429 in words is "seventy-three million, seventy-four thousand, four hundred twenty-nine".

Divisors: 1 3 9 89 267 801 91229 273687 821061 8119381 24358143 73074429