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2143102415999 = 231972803168743
BaseRepresentation
bin11111001011111010110…
…110111011010001111111
321120212201111021210101112
4133023322312323101333
5240103033204302444
64320305550232235
7310556034653666
oct37137266732177
97525644253345
102143102415999
11756980496a96
122a74207b567b
1312712aab8c7c
1475a26143ddd
153ab3127369e
hex1f2fadbb47f

2143102415999 has 16 divisors (see below), whose sum is σ = 2248447652352. Its totient is φ = 2038778642208.

The previous prime is 2143102415939. The next prime is 2143102416011. The reversal of 2143102415999 is 9995142013412.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2143102415999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143102415939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12616022 + ... + 12784764.

It is an arithmetic number, because the mean of its divisors is an integer number (140527978272).

Almost surely, 22143102415999 is an apocalyptic number.

2143102415999 is a deficient number, since it is larger than the sum of its proper divisors (105345236353).

2143102415999 is a wasteful number, since it uses less digits than its factorization.

2143102415999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171766.

The product of its (nonzero) digits is 699840, while the sum is 50.

The spelling of 2143102415999 in words is "two trillion, one hundred forty-three billion, one hundred two million, four hundred fifteen thousand, nine hundred ninety-nine".

Divisors: 1 23 197 2803 4531 64469 168743 552191 3881089 12700393 33242371 472986629 764574533 10878692467 93178365913 2143102415999