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163161033 = 3722774007
BaseRepresentation
bin10011011100110…
…10001111001001
3102101000102212020
421232122033021
5313232123113
624105035053
74020563100
oct1156321711
9371012766
10163161033
1184111332
1246785a89
1327a594b9
1417953037
15e4ce023
hex9b9a3c9

163161033 has 24 divisors (see below), whose sum is σ = 254043072. Its totient is φ = 92875104.

The previous prime is 163161023. The next prime is 163161073. The reversal of 163161033 is 330161361.

It is not a de Polignac number, because 163161033 - 25 = 163161001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 163160994 and 163161012.

It is not an unprimeable number, because it can be changed into a prime (163161023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38716 + ... + 42722.

It is an arithmetic number, because the mean of its divisors is an integer number (10585128).

Almost surely, 2163161033 is an apocalyptic number.

It is an amenable number.

163161033 is a deficient number, since it is larger than the sum of its proper divisors (90882039).

163161033 is a wasteful number, since it uses less digits than its factorization.

163161033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4301 (or 4294 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 24.

The square root of 163161033 is about 12773.4503169660. The cubic root of 163161033 is about 546.4353857971.

The spelling of 163161033 in words is "one hundred sixty-three million, one hundred sixty-one thousand, thirty-three".

Divisors: 1 3 7 21 49 147 277 831 1939 4007 5817 12021 13573 28049 40719 84147 196343 589029 1109939 3329817 7769573 23308719 54387011 163161033