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161120282 = 280560141
BaseRepresentation
bin10011001101010…
…00000000011010
3102020011202110212
421212220000122
5312221322112
623553211122
73664333301
oct1146500032
9366152425
10161120282
1182a48064
1245b60aa2
13274c365b
1417581438
15e229522
hex99a801a

161120282 has 4 divisors (see below), whose sum is σ = 241680426. Its totient is φ = 80560140.

The previous prime is 161120273. The next prime is 161120303. The reversal of 161120282 is 282021161.

161120282 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 282021161 = 1914843219.

It can be written as a sum of positive squares in only one way, i.e., 161010721 + 109561 = 12689^2 + 331^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40280069 + ... + 40280072.

Almost surely, 2161120282 is an apocalyptic number.

161120282 is a deficient number, since it is larger than the sum of its proper divisors (80560144).

161120282 is an equidigital number, since it uses as much as digits as its factorization.

161120282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80560143.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 161120282 is about 12693.3164303109. The cubic root of 161120282 is about 544.1476247460.

The spelling of 161120282 in words is "one hundred sixty-one million, one hundred twenty thousand, two hundred eighty-two".

Divisors: 1 2 80560141 161120282