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29142722923 = 1715710918967
BaseRepresentation
bin11011001001000010…
…101010100101101011
32210020000011201022021
4123021002222211223
5434141014113143
621215445405311
72051120025526
oct331102524553
983200151267
1029142722923
11113a5342086
125793a09837
1329958a9762
1415a664dbbd
15b5873aced
hex6c90aa96b

29142722923 has 8 divisors (see below), whose sum is σ = 31053544992. Its totient is φ = 27253739136.

The previous prime is 29142722897. The next prime is 29142722929. The reversal of 29142722923 is 32922724192.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-29142722923 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 29142722923.

It is not an unprimeable number, because it can be changed into a prime (29142722929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5456815 + ... + 5462152.

It is an arithmetic number, because the mean of its divisors is an integer number (3881693124).

Almost surely, 229142722923 is an apocalyptic number.

29142722923 is a deficient number, since it is larger than the sum of its proper divisors (1910822069).

29142722923 is a wasteful number, since it uses less digits than its factorization.

29142722923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10919141.

The product of its digits is 217728, while the sum is 43.

The spelling of 29142722923 in words is "twenty-nine billion, one hundred forty-two million, seven hundred twenty-two thousand, nine hundred twenty-three".

Divisors: 1 17 157 2669 10918967 185622439 1714277819 29142722923