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23031631443 = 331247651951
BaseRepresentation
bin10101011100110010…
…101100111001010011
32012110010002002202210
4111130302230321103
5334132044201233
614325223443203
71443513431352
oct253462547123
965403062683
1023031631443
119849834657
1245692b6503
1322307b58b2
141186ba3999
158ebeac163
hex55ccace53

23031631443 has 8 divisors (see below), whose sum is σ = 31699449856. Its totient is φ = 14859117000.

The previous prime is 23031631429. The next prime is 23031631453. The reversal of 23031631443 is 34413613032.

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

It is not a de Polignac number, because 23031631443 - 29 = 23031630931 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23031631443.

It is not an unprimeable number, because it can be changed into a prime (23031631453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123825883 + ... + 123826068.

It is an arithmetic number, because the mean of its divisors is an integer number (3962431232).

Almost surely, 223031631443 is an apocalyptic number.

23031631443 is a deficient number, since it is larger than the sum of its proper divisors (8667818413).

23031631443 is a wasteful number, since it uses less digits than its factorization.

23031631443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247651985.

The product of its (nonzero) digits is 15552, while the sum is 30.

The spelling of 23031631443 in words is "twenty-three billion, thirty-one million, six hundred thirty-one thousand, four hundred forty-three".

Divisors: 1 3 31 93 247651951 742955853 7677210481 23031631443