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2143123023 = 34799148859
BaseRepresentation
bin111111110111101…
…0111011001001111
312112100122221002210
41333233113121033
513342114414043
6552354321503
7104052150036
oct17757273117
95470587083
102143123023
119aa812058
124b9889293
13282009042
141648b371d
15c8234633
hex7fbd764f

2143123023 has 8 divisors (see below), whose sum is σ = 2858112000. Its totient is φ = 1428441368.

The previous prime is 2143123007. The next prime is 2143123033. The reversal of 2143123023 is 3203213412.

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 2143123023 - 24 = 2143123007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143123033) 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, 60033 + ... + 88826.

It is an arithmetic number, because the mean of its divisors is an integer number (357264000).

Almost surely, 22143123023 is an apocalyptic number.

2143123023 is a deficient number, since it is larger than the sum of its proper divisors (714988977).

2143123023 is a wasteful number, since it uses less digits than its factorization.

2143123023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153661.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 2143123023 is about 46293.8767333219. The cubic root of 2143123023 is about 1289.2853087019.

Adding to 2143123023 its reverse (3203213412), we get a palindrome (5346336435).

The spelling of 2143123023 in words is "two billion, one hundred forty-three million, one hundred twenty-three thousand, twenty-three".

Divisors: 1 3 4799 14397 148859 446577 714374341 2143123023