Search a number
-
+
13980553 = 102113693
BaseRepresentation
bin110101010101…
…001110001001
3222022021201021
4311111032021
512034334203
61215352441
7226555426
oct65251611
928267637
1013980553
117989884
124822721
132b86622
141bdcd4d
1513625bd
hexd55389

13980553 has 4 divisors (see below), whose sum is σ = 13995268. Its totient is φ = 13965840.

The previous prime is 13980517. The next prime is 13980557. The reversal of 13980553 is 35508931.

13980553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35508931 = 46797589.

It can be written as a sum of positive squares in 2 ways, for example, as 12166144 + 1814409 = 3488^2 + 1347^2 .

It is a cyclic number.

It is not a de Polignac number, because 13980553 - 217 = 13849481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13980557) 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, 5826 + ... + 7867.

It is an arithmetic number, because the mean of its divisors is an integer number (3498817).

Almost surely, 213980553 is an apocalyptic number.

It is an amenable number.

13980553 is a deficient number, since it is larger than the sum of its proper divisors (14715).

13980553 is a wasteful number, since it uses less digits than its factorization.

13980553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14714.

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 13980553 is about 3739.0577690108. The cubic root of 13980553 is about 240.9025793811.

The spelling of 13980553 in words is "thirteen million, nine hundred eighty thousand, five hundred fifty-three".

Divisors: 1 1021 13693 13980553