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161075335 = 532215067
BaseRepresentation
bin10011001100111…
…01000010000111
3102020002110211011
421212131002013
5312213402320
623552223051
73664055251
oct1146350207
9366073734
10161075335
1182a17313
1245b3aa87
13274a9065
141756ccd1
15e21b05a
hex999d087

161075335 has 4 divisors (see below), whose sum is σ = 193290408. Its totient is φ = 128860264.

The previous prime is 161075333. The next prime is 161075351. The reversal of 161075335 is 533570161.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 161075335 - 21 = 161075333 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 161075297 and 161075306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161075333) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 16107529 + ... + 16107538.

It is an arithmetic number, because the mean of its divisors is an integer number (48322602).

Almost surely, 2161075335 is an apocalyptic number.

161075335 is a deficient number, since it is larger than the sum of its proper divisors (32215073).

161075335 is an equidigital number, since it uses as much as digits as its factorization.

161075335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32215072.

The product of its (nonzero) digits is 9450, while the sum is 31.

The square root of 161075335 is about 12691.5458081354. The cubic root of 161075335 is about 544.0970205687.

The spelling of 161075335 in words is "one hundred sixty-one million, seventy-five thousand, three hundred thirty-five".

Divisors: 1 5 32215067 161075335