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73161430 = 257316143
BaseRepresentation
bin1000101110001…
…01101011010110
312002122222121121
410113011223112
5122212131210
611132034154
71545601426
oct427055326
9162588547
1073161430
11383302a1
122060295a
13122077b4
149a06486
1566526da
hex45c5ad6

73161430 has 8 divisors (see below), whose sum is σ = 131690592. Its totient is φ = 29264568.

The previous prime is 73161427. The next prime is 73161437. The reversal of 73161430 is 3416137.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 73161395 and 73161404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73161437) 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, 3658062 + ... + 3658081.

It is an arithmetic number, because the mean of its divisors is an integer number (16461324).

Almost surely, 273161430 is an apocalyptic number.

73161430 is a deficient number, since it is larger than the sum of its proper divisors (58529162).

73161430 is a wasteful number, since it uses less digits than its factorization.

73161430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7316150.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 73161430 is about 8553.4455045905. The cubic root of 73161430 is about 418.2417616569.

Adding to 73161430 its reverse (3416137), we get a palindrome (76577567).

The spelling of 73161430 in words is "seventy-three million, one hundred sixty-one thousand, four hundred thirty".

Divisors: 1 2 5 10 7316143 14632286 36580715 73161430