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234233221 = 835934759
BaseRepresentation
bin11011111011000…
…01110110000101
3121022202021120111
431331201312011
5434430430341
635124233021
75542643455
oct1575416605
9538667514
10234233221
11110244982
126653b771
13396b2051
1423173d65
151586c681
hexdf61d85

234233221 has 8 divisors (see below), whose sum is σ = 237504960. Its totient is φ = 230972352.

The previous prime is 234233201. The next prime is 234233231. The reversal of 234233221 is 122332432.

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 234233221 - 27 = 234233093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 234233192 and 234233201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234233201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46840 + ... + 51598.

It is an arithmetic number, because the mean of its divisors is an integer number (29688120).

Almost surely, 2234233221 is an apocalyptic number.

It is an amenable number.

234233221 is a deficient number, since it is larger than the sum of its proper divisors (3271739).

234233221 is an equidigital number, since it uses as much as digits as its factorization.

234233221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5435.

The product of its digits is 1728, while the sum is 22.

The square root of 234233221 is about 15304.6797091609. The cubic root of 234233221 is about 616.4286709877.

Adding to 234233221 its reverse (122332432), we get a palindrome (356565653).

The spelling of 234233221 in words is "two hundred thirty-four million, two hundred thirty-three thousand, two hundred twenty-one".

Divisors: 1 83 593 4759 49219 394997 2822087 234233221