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73117168 = 2419240517
BaseRepresentation
bin1000101101110…
…10110111110000
312002120201220021
410112322313300
5122204222133
611131053224
71545325405
oct426726760
9162521807
1073117168
1138300013
12205a1214
13121c05c7
1499d42ac
15664452d
hex45badf0

73117168 has 20 divisors (see below), whose sum is σ = 149121160. Its totient is φ = 34634304.

The previous prime is 73117151. The next prime is 73117169. The reversal of 73117168 is 86171137.

It is a super-2 number, since 2×731171682 = 10692240512680448, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73117169) 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, 119955 + ... + 120562.

It is an arithmetic number, because the mean of its divisors is an integer number (7456058).

Almost surely, 273117168 is an apocalyptic number.

It is an amenable number.

73117168 is an abundant number, since it is smaller than the sum of its proper divisors (76003992).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73117168 is a wasteful number, since it uses less digits than its factorization.

73117168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240544 (or 240538 counting only the distinct ones).

The product of its digits is 7056, while the sum is 34.

The square root of 73117168 is about 8550.8577347539. The cubic root of 73117168 is about 418.1574004875.

The spelling of 73117168 in words is "seventy-three million, one hundred seventeen thousand, one hundred sixty-eight".

Divisors: 1 2 4 8 16 19 38 76 152 304 240517 481034 962068 1924136 3848272 4569823 9139646 18279292 36558584 73117168