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16143948304129 = 19849681489691
BaseRepresentation
bin1110101011101100111001…
…0011011100111100000001
32010011100100111220022112001
43222323032103130330001
54104000301231213004
654200232155504001
73254235042301522
oct352731623347401
963140314808461
1016143948304129
115164678a44978
12198897b758001
139014a206b729
143db52aa84849
151cee1b5601a4
hexeaece4dcf01

16143948304129 has 4 divisors (see below), whose sum is σ = 16993629793840. Its totient is φ = 15294266814420.

The previous prime is 16143948304097. The next prime is 16143948304139. The reversal of 16143948304129 is 92140384934161.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16143948304129 - 25 = 16143948304097 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 16143948304129.

It is not an unprimeable number, because it can be changed into a prime (16143948304139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 424840744827 + ... + 424840744864.

It is an arithmetic number, because the mean of its divisors is an integer number (4248407448460).

Almost surely, 216143948304129 is an apocalyptic number.

16143948304129 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

16143948304129 is a deficient number, since it is larger than the sum of its proper divisors (849681489711).

16143948304129 is an equidigital number, since it uses as much as digits as its factorization.

16143948304129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849681489710.

The product of its (nonzero) digits is 4478976, while the sum is 55.

The spelling of 16143948304129 in words is "sixteen trillion, one hundred forty-three billion, nine hundred forty-eight million, three hundred four thousand, one hundred twenty-nine".

Divisors: 1 19 849681489691 16143948304129