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2303322143 = 23397252253
BaseRepresentation
bin1000100101001001…
…1110100000011111
312221112002212222112
42021102132200133
514204122302033
61020320104235
7111035625623
oct21122364037
95845085875
102303322143
11a82190021
1254346507b
132a9269315
1417bc95183
15d732ac48
hex8949e81f

2303322143 has 8 divisors (see below), whose sum is σ = 2409530208. Its totient is φ = 2197619424.

The previous prime is 2303322089. The next prime is 2303322167. The reversal of 2303322143 is 3412233032.

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 2303322143 - 26 = 2303322079 is a prime.

It is a super-2 number, since 2×23033221432 = 10610585788868224898, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2303322643) 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, 116996 + ... + 135257.

It is an arithmetic number, because the mean of its divisors is an integer number (301191276).

Almost surely, 22303322143 is an apocalyptic number.

2303322143 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2303322143 is a deficient number, since it is larger than the sum of its proper divisors (106208065).

2303322143 is a wasteful number, since it uses less digits than its factorization.

2303322143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252673.

The product of its (nonzero) digits is 2592, while the sum is 23.

The square root of 2303322143 is about 47992.9384701541. The cubic root of 2303322143 is about 1320.6413593936.

Adding to 2303322143 its reverse (3412233032), we get a palindrome (5715555175).

The spelling of 2303322143 in words is "two billion, three hundred three million, three hundred twenty-two thousand, one hundred forty-three".

Divisors: 1 23 397 9131 252253 5801819 100144441 2303322143