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73124161 = 1113748523
BaseRepresentation
bin1000101101111…
…00100101000001
312002121002111021
410112330211001
5122204433121
611131145441
71545354655
oct426744501
9162532437
1073124161
11383052a0
12205a5281
13121c3846
1499d6a65
156646641
hex45bc941

73124161 has 8 divisors (see below), whose sum is σ = 80355744. Its totient is φ = 65989920.

The previous prime is 73124143. The next prime is 73124171. The reversal of 73124161 is 16142137.

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

It is a cyclic number.

It is not a de Polignac number, because 73124161 - 219 = 72599873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73124111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22755 + ... + 25768.

It is an arithmetic number, because the mean of its divisors is an integer number (10044468).

Almost surely, 273124161 is an apocalyptic number.

It is an amenable number.

73124161 is a deficient number, since it is larger than the sum of its proper divisors (7231583).

73124161 is a wasteful number, since it uses less digits than its factorization.

73124161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48671.

The product of its digits is 1008, while the sum is 25.

The square root of 73124161 is about 8551.2666313243. The cubic root of 73124161 is about 418.1707310617.

Adding to 73124161 its reverse (16142137), we get a palindrome (89266298).

The spelling of 73124161 in words is "seventy-three million, one hundred twenty-four thousand, one hundred sixty-one".

Divisors: 1 11 137 1507 48523 533753 6647651 73124161