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161084064 = 2538112069
BaseRepresentation
bin10011001100111…
…11001010100000
3102020002220210110
421212133022200
5312214142224
623552331320
73664122561
oct1146371240
9366086713
10161084064
1182a22929
1245b43b40
13274b001b
1417572168
15e21d929
hex999f2a0

161084064 has 48 divisors (see below), whose sum is σ = 423571680. Its totient is φ = 53602560.

The previous prime is 161084059. The next prime is 161084089. The reversal of 161084064 is 460480161.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76822 + ... + 78890.

It is an arithmetic number, because the mean of its divisors is an integer number (8824410).

Almost surely, 2161084064 is an apocalyptic number.

It is an amenable number.

161084064 is an abundant number, since it is smaller than the sum of its proper divisors (262487616).

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

161084064 is a wasteful number, since it uses less digits than its factorization.

161084064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2893 (or 2885 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 161084064 is about 12691.8896938163. The cubic root of 161084064 is about 544.1068489659.

The spelling of 161084064 in words is "one hundred sixty-one million, eighty-four thousand, sixty-four".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 811 1622 2069 2433 3244 4138 4866 6207 6488 8276 9732 12414 12976 16552 19464 24828 25952 33104 38928 49656 66208 77856 99312 198624 1677959 3355918 5033877 6711836 10067754 13423672 20135508 26847344 40271016 53694688 80542032 161084064