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23303452431 = 371109688211
BaseRepresentation
bin10101101100111111…
…100111011100001111
32020011001120001001210
4111230333213130033
5340211140434211
614412213505503
71453324035360
oct255477473417
966131501053
1023303452431
1199792117a6
124624342293
132274bc850c
1411b0d1db67
15915ca19a6
hex56cfe770f

23303452431 has 8 divisors (see below), whose sum is σ = 35510022784. Its totient is φ = 13316258520.

The previous prime is 23303452427. The next prime is 23303452477. The reversal of 23303452431 is 13425430332.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23303452431 - 22 = 23303452427 is a prime.

It is a super-2 number, since 2×233034524312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23303452411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 554844085 + ... + 554844126.

It is an arithmetic number, because the mean of its divisors is an integer number (4438752848).

Almost surely, 223303452431 is an apocalyptic number.

23303452431 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

23303452431 is a deficient number, since it is larger than the sum of its proper divisors (12206570353).

23303452431 is a wasteful number, since it uses less digits than its factorization.

23303452431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1109688221.

The product of its (nonzero) digits is 25920, while the sum is 30.

Adding to 23303452431 its reverse (13425430332), we get a palindrome (36728882763).

The spelling of 23303452431 in words is "twenty-three billion, three hundred three million, four hundred fifty-two thousand, four hundred thirty-one".

Divisors: 1 3 7 21 1109688211 3329064633 7767817477 23303452431