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234255321 = 3473173229
BaseRepresentation
bin11011111011001…
…11001111011001
3121022210101220000
431331213033121
5434432132241
635124523213
75543065056
oct1575471731
9538711800
10234255321
1111025a543
1266550509
13396bc121
142317c02d
1515873eb6
hexdf673d9

234255321 has 40 divisors (see below), whose sum is σ = 358339080. Its totient is φ = 152471808.

The previous prime is 234255319. The next prime is 234255353. The reversal of 234255321 is 123552432.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 149817600 + 84437721 = 12240^2 + 9189^2 .

It is not a de Polignac number, because 234255321 - 21 = 234255319 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (232255321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1022835 + ... + 1023063.

It is an arithmetic number, because the mean of its divisors is an integer number (8958477).

Almost surely, 2234255321 is an apocalyptic number.

It is an amenable number.

234255321 is a deficient number, since it is larger than the sum of its proper divisors (124083759).

234255321 is a wasteful number, since it uses less digits than its factorization.

234255321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487 (or 478 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 234255321 is about 15305.4016935198. The cubic root of 234255321 is about 616.4480571436.

The spelling of 234255321 in words is "two hundred thirty-four million, two hundred fifty-five thousand, three hundred twenty-one".

Divisors: 1 3 9 27 73 81 173 219 229 519 657 687 1557 1971 2061 4671 5913 6183 12629 14013 16717 18549 37887 39617 50151 113661 118851 150453 340983 356553 451359 1022949 1069659 1354077 2892041 3208977 8676123 26028369 78085107 234255321