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73380829 = 131560159
BaseRepresentation
bin1000101111110…
…11001111011101
312010002010120111
410113323033131
5122241141304
611140450021
71550504164
oct427731735
9163063514
1073380829
1138470115
12206a9911
1312283612
149a623db
156697704
hex45fb3dd

73380829 has 4 divisors (see below), whose sum is σ = 73941120. Its totient is φ = 72820540.

The previous prime is 73380821. The next prime is 73380877. The reversal of 73380829 is 92808337.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 92808337 = 758312239.

It is a cyclic number.

It is not a de Polignac number, because 73380829 - 23 = 73380821 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 73380791 and 73380800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73380821) 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, 279949 + ... + 280210.

It is an arithmetic number, because the mean of its divisors is an integer number (18485280).

Almost surely, 273380829 is an apocalyptic number.

It is an amenable number.

73380829 is a deficient number, since it is larger than the sum of its proper divisors (560291).

73380829 is a wasteful number, since it uses less digits than its factorization.

73380829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560290.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 73380829 is about 8566.2610863784. The cubic root of 73380829 is about 418.6594236709.

The spelling of 73380829 in words is "seventy-three million, three hundred eighty thousand, eight hundred twenty-nine".

Divisors: 1 131 560159 73380829