Search a number
-
+
13421120351 = 127157673109
BaseRepresentation
bin11000111111111011…
…00000101101011111
31021122100012112222112
430133331200231133
5204441301322401
610055433104235
7653405432522
oct143775405537
937570175875
1013421120351
115767966401
12272685807b
13135b6c9642
1491466abb9
155383d83bb
hex31ff60b5f

13421120351 has 8 divisors (see below), whose sum is σ = 13612976640. Its totient is φ = 13230610848.

The previous prime is 13421120329. The next prime is 13421120353. The reversal of 13421120351 is 15302112431.

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 13421120351 - 226 = 13354011487 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 (13421120353) 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, 316616 + ... + 356493.

It is an arithmetic number, because the mean of its divisors is an integer number (1701622080).

Almost surely, 213421120351 is an apocalyptic number.

13421120351 is a deficient number, since it is larger than the sum of its proper divisors (191856289).

13421120351 is a wasteful number, since it uses less digits than its factorization.

13421120351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673393.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 13421120351 its reverse (15302112431), we get a palindrome (28723232782).

The spelling of 13421120351 in words is "thirteen billion, four hundred twenty-one million, one hundred twenty thousand, three hundred fifty-one".

Divisors: 1 127 157 19939 673109 85484843 105678113 13421120351