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2152443223 = 7752940841
BaseRepresentation
bin1000000001001011…
…1010110101010111
312120000012110000101
42000102322311113
513402011140343
6553330154531
7104224315450
oct20022726527
95500173011
102152443223
11a04aa84a7
12500a22a47
13283c20358
14165c1c127
15c8e75e4d
hex804bad57

2152443223 has 8 divisors (see below), whose sum is σ = 2460322080. Its totient is φ = 1844661120.

The previous prime is 2152443211. The next prime is 2152443239. The reversal of 2152443223 is 3223442512.

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 2152443223 - 213 = 2152435031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2152443191 and 2152443200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2152443203) 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, 32283 + ... + 73123.

It is an arithmetic number, because the mean of its divisors is an integer number (307540260).

Almost surely, 22152443223 is an apocalyptic number.

2152443223 is a deficient number, since it is larger than the sum of its proper divisors (307878857).

2152443223 is an equidigital number, since it uses as much as digits as its factorization.

2152443223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48377.

The product of its digits is 11520, while the sum is 28.

The square root of 2152443223 is about 46394.4309481213. The cubic root of 2152443223 is about 1291.1515912954.

Adding to 2152443223 its reverse (3223442512), we get a palindrome (5375885735).

The spelling of 2152443223 in words is "two billion, one hundred fifty-two million, four hundred forty-three thousand, two hundred twenty-three".

Divisors: 1 7 7529 40841 52703 285887 307491889 2152443223