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13402339143 = 34467446381
BaseRepresentation
bin11000111101101011…
…10111011101000111
31021121000212101000020
430132311313131013
5204421444323033
610053522350223
7653060001024
oct143665673507
937530771006
1013402339143
1157582a8846
1227204bb373
131357851bbb
14911d7c54b
155369286b3
hex31ed77747

13402339143 has 4 divisors (see below), whose sum is σ = 17869785528. Its totient is φ = 8934892760.

The previous prime is 13402339109. The next prime is 13402339189. The reversal of 13402339143 is 34193320431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34193320431 = 311397773477.

It is a cyclic number.

It is not a de Polignac number, because 13402339143 - 225 = 13368784711 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13402339193) 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, 2233723188 + ... + 2233723193.

It is an arithmetic number, because the mean of its divisors is an integer number (4467446382).

Almost surely, 213402339143 is an apocalyptic number.

13402339143 is a deficient number, since it is larger than the sum of its proper divisors (4467446385).

13402339143 is an equidigital number, since it uses as much as digits as its factorization.

13402339143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4467446384.

The product of its (nonzero) digits is 23328, while the sum is 33.

Adding to 13402339143 its reverse (34193320431), we get a palindrome (47595659574).

It can be divided in two parts, 134023 and 39143, that added together give a triangular number (173166 = T588).

The spelling of 13402339143 in words is "thirteen billion, four hundred two million, three hundred thirty-nine thousand, one hundred forty-three".

Divisors: 1 3 4467446381 13402339143