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234056161 = 787297403
BaseRepresentation
bin11011111001101…
…10100111100001
3121022102021200201
431330312213201
5434404244121
635120345201
75541305323
oct1574664741
9538367621
10234056161
11110133949
1266475201
133964c591
1423129613
1515834e91
hexdf369e1

234056161 has 4 divisors (see below), whose sum is σ = 234354352. Its totient is φ = 233757972.

The previous prime is 234056149. The next prime is 234056171. The reversal of 234056161 is 161650432.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 234056161 - 29 = 234055649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (234056111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147915 + ... + 149488.

It is an arithmetic number, because the mean of its divisors is an integer number (58588588).

Almost surely, 2234056161 is an apocalyptic number.

It is an amenable number.

234056161 is a deficient number, since it is larger than the sum of its proper divisors (298191).

234056161 is an equidigital number, since it uses as much as digits as its factorization.

234056161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298190.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 234056161 is about 15298.8941103597. The cubic root of 234056161 is about 616.2733096304.

The spelling of 234056161 in words is "two hundred thirty-four million, fifty-six thousand, one hundred sixty-one".

Divisors: 1 787 297403 234056161