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234166081 = 372171049
BaseRepresentation
bin11011111010100…
…01011101000001
3121022121212110211
431331101131001
5434421303311
635122554121
75542243642
oct1575213501
9538555424
10234166081
111101a9496
1266508941
133968a616
14231576c9
1515857821
hexdf51741

234166081 has 6 divisors (see below), whose sum is σ = 240667350. Its totient is φ = 227835936.

The previous prime is 234166073. The next prime is 234166099. The reversal of 234166081 is 180661432.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 60980481 + 173185600 = 7809^2 + 13160^2 .

It is not a de Polignac number, because 234166081 - 23 = 234166073 is a prime.

It is a super-2 number, since 2×2341660812 = 109667506981797122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (234166001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 84156 + ... + 86893.

It is an arithmetic number, because the mean of its divisors is an integer number (40111225).

Almost surely, 2234166081 is an apocalyptic number.

It is an amenable number.

234166081 is a deficient number, since it is larger than the sum of its proper divisors (6501269).

234166081 is an equidigital number, since it uses as much as digits as its factorization.

234166081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171123 (or 171086 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 234166081 is about 15302.4861052053. The cubic root of 234166081 is about 616.3697681902.

The spelling of 234166081 in words is "two hundred thirty-four million, one hundred sixty-six thousand, eighty-one".

Divisors: 1 37 1369 171049 6328813 234166081