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234021001 = 628737223
BaseRepresentation
bin11011111001011…
…10000010001001
3121022100111110111
431330232002021
5434402133001
635115514321
75541100654
oct1574560211
9538314414
10234021001
1111010a495
12664589a1
1339639586
142311a89b
1515829851
hexdf2e089

234021001 has 4 divisors (see below), whose sum is σ = 234064512. Its totient is φ = 233977492.

The previous prime is 234020999. The next prime is 234021019. The reversal of 234021001 is 100120432.

234021001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 234021001 - 21 = 234020999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (234021701) 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, 12325 + ... + 24898.

It is an arithmetic number, because the mean of its divisors is an integer number (58516128).

Almost surely, 2234021001 is an apocalyptic number.

It is an amenable number.

234021001 is a deficient number, since it is larger than the sum of its proper divisors (43511).

234021001 is an equidigital number, since it uses as much as digits as its factorization.

234021001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43510.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 234021001 is about 15297.7449645364. The cubic root of 234021001 is about 616.2424491530.

Adding to 234021001 its reverse (100120432), we get a palindrome (334141433).

The spelling of 234021001 in words is "two hundred thirty-four million, twenty-one thousand, one".

Divisors: 1 6287 37223 234021001