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13421155143 = 311406701671
BaseRepresentation
bin11000111111111011…
…01001001101000111
31021122100021022201010
430133331221031013
5204441303431033
610055433533303
7653405636124
oct143775511507
937570238633
1013421155143
11576798a560
122726874233
13135b70c426
1491467974b
155383e3863
hex31ff69347

13421155143 has 8 divisors (see below), whose sum is σ = 19521680256. Its totient is φ = 8134033400.

The previous prime is 13421155133. The next prime is 13421155177. The reversal of 13421155143 is 34155112431.

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 13421155143 - 218 = 13420892999 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13421155143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13421155103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203350803 + ... + 203350868.

It is an arithmetic number, because the mean of its divisors is an integer number (2440210032).

Almost surely, 213421155143 is an apocalyptic number.

13421155143 is a deficient number, since it is larger than the sum of its proper divisors (6100525113).

13421155143 is a wasteful number, since it uses less digits than its factorization.

13421155143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406701685.

The product of its digits is 7200, while the sum is 30.

Adding to 13421155143 its reverse (34155112431), we get a palindrome (47576267574).

The spelling of 13421155143 in words is "thirteen billion, four hundred twenty-one million, one hundred fifty-five thousand, one hundred forty-three".

Divisors: 1 3 11 33 406701671 1220105013 4473718381 13421155143