Search a number
-
+
13420142455 = 55350642047
BaseRepresentation
bin11000111111110011…
…10001111101110111
31021122021100212120011
430133321301331313
5204441024024310
610055400121051
7653364220516
oct143771617567
937567325504
1013420142455
115767358725
122726466187
13135b4464c5
1491449467d
1553829378a
hex31fe71f77

13420142455 has 8 divisors (see below), whose sum is σ = 16408023552. Its totient is φ = 10533545568.

The previous prime is 13420142443. The next prime is 13420142467. The reversal of 13420142455 is 55424102431.

It is an interprime number because it is at equal distance from previous prime (13420142443) and next prime (13420142467).

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 13420142455 - 211 = 13420140407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25320759 + ... + 25321288.

It is an arithmetic number, because the mean of its divisors is an integer number (2051002944).

Almost surely, 213420142455 is an apocalyptic number.

13420142455 is a deficient number, since it is larger than the sum of its proper divisors (2987881097).

13420142455 is an equidigital number, since it uses as much as digits as its factorization.

13420142455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50642105.

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 13420142455 its reverse (55424102431), we get a palindrome (68844244886).

The spelling of 13420142455 in words is "thirteen billion, four hundred twenty million, one hundred forty-two thousand, four hundred fifty-five".

Divisors: 1 5 53 265 50642047 253210235 2684028491 13420142455