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161160243 = 3413912979
BaseRepresentation
bin10011001101100…
…01110000110011
3102020020210021220
421212301300303
5312224111433
623554120123
73664560636
oct1146616063
9366223256
10161160243
1182a75092
1245b80043
13275088ba
1417591c1d
15e2362b3
hex99b1c33

161160243 has 8 divisors (see below), whose sum is σ = 214948800. Its totient is φ = 107405928.

The previous prime is 161160199. The next prime is 161160247. The reversal of 161160243 is 342061161.

161160243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 161160243 - 220 = 160111667 is a prime.

It is not an unprimeable number, because it can be changed into a prime (161160247) 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, 5928 + ... + 18906.

It is an arithmetic number, because the mean of its divisors is an integer number (26868600).

Almost surely, 2161160243 is an apocalyptic number.

161160243 is a deficient number, since it is larger than the sum of its proper divisors (53788557).

161160243 is a wasteful number, since it uses less digits than its factorization.

161160243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17121.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 161160243 is about 12694.8904288300. The cubic root of 161160243 is about 544.1926074664.

The spelling of 161160243 in words is "one hundred sixty-one million, one hundred sixty thousand, two hundred forty-three".

Divisors: 1 3 4139 12417 12979 38937 53720081 161160243