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161006303 = 1741230999
BaseRepresentation
bin10011001100011…
…00001011011111
3102012221222010102
421212030023133
5312204200203
623550531315
73663350063
oct1146141337
9365858112
10161006303
118297a467
1245b06b3b
1327483803
1417551aa3
15e205888
hex998c2df

161006303 has 8 divisors (see below), whose sum is σ = 174636000. Its totient is φ = 147838720.

The previous prime is 161006297. The next prime is 161006311. The reversal of 161006303 is 303600161.

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

It is a cyclic number.

It is not a de Polignac number, because 161006303 - 28 = 161006047 is a prime.

It is a super-3 number, since 3×1610063033 (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161006603) 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, 114803 + ... + 116196.

It is an arithmetic number, because the mean of its divisors is an integer number (21829500).

Almost surely, 2161006303 is an apocalyptic number.

161006303 is a deficient number, since it is larger than the sum of its proper divisors (13629697).

161006303 is a wasteful number, since it uses less digits than its factorization.

161006303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231057.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 161006303 is about 12688.8259110132. The cubic root of 161006303 is about 544.0192816389.

Adding to 161006303 its reverse (303600161), we get a palindrome (464606464).

The spelling of 161006303 in words is "one hundred sixty-one million, six thousand, three hundred three".

Divisors: 1 17 41 697 230999 3926983 9470959 161006303