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234490231 = 1731444953
BaseRepresentation
bin11011111101000…
…00100101110111
3121100020100010101
431332200211313
5440012141411
635133534531
75545063663
oct1576404567
9540210111
10234490231
111103aaa88
1266644447
1339772021
14231dd8a3
15158bd8c1
hexdfa0977

234490231 has 8 divisors (see below), whose sum is σ = 256293504. Its totient is φ = 213576960.

The previous prime is 234490219. The next prime is 234490241. The reversal of 234490231 is 132094432.

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 234490231 - 27 = 234490103 is a prime.

It is a super-2 number, since 2×2344902312 = 109971336868866722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 234490231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234490241) 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 7 ways as a sum of consecutive naturals, for example, 221950 + ... + 223003.

It is an arithmetic number, because the mean of its divisors is an integer number (32036688).

Almost surely, 2234490231 is an apocalyptic number.

234490231 is a deficient number, since it is larger than the sum of its proper divisors (21803273).

234490231 is a wasteful number, since it uses less digits than its factorization.

234490231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445001.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 234490231 is about 15313.0738586347. The cubic root of 234490231 is about 616.6540452575.

The spelling of 234490231 in words is "two hundred thirty-four million, four hundred ninety thousand, two hundred thirty-one".

Divisors: 1 17 31 527 444953 7564201 13793543 234490231