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234052381 = 733206197
BaseRepresentation
bin11011111001101…
…01101100011101
3121022102002111201
431330311230131
5434404134011
635120315501
75541261313
oct1574655435
9538362451
10234052381
11110131022
1266472b91
133964a944
14231280b3
1515833cc1
hexdf35b1d

234052381 has 4 divisors (see below), whose sum is σ = 237258652. Its totient is φ = 230846112.

The previous prime is 234052331. The next prime is 234052421. The reversal of 234052381 is 183250432.

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

It can be written as a sum of positive squares in 2 ways, for example, as 79049881 + 155002500 = 8891^2 + 12450^2 .

It is a cyclic number.

It is not a de Polignac number, because 234052381 - 27 = 234052253 is a prime.

It is a super-2 number, since 2×2340523812 = 109561034103538322, which contains 22 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 (234052331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1603026 + ... + 1603171.

It is an arithmetic number, because the mean of its divisors is an integer number (59314663).

Almost surely, 2234052381 is an apocalyptic number.

It is an amenable number.

234052381 is a deficient number, since it is larger than the sum of its proper divisors (3206271).

234052381 is an equidigital number, since it uses as much as digits as its factorization.

234052381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3206270.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 234052381 is about 15298.7705715198. The cubic root of 234052381 is about 616.2699920141.

The spelling of 234052381 in words is "two hundred thirty-four million, fifty-two thousand, three hundred eighty-one".

Divisors: 1 73 3206197 234052381