Search a number
-
+
13888853245 = 52861970909
BaseRepresentation
bin11001110111101011…
…10001010011111101
31022211221022211220001
430323311301103331
5211421021300440
610214102154301
71001115206341
oct147365612375
938757284801
1013888853245
115987994013
122837422991
131404594877
1495a823621
155644cab9a
hex33bd714fd

13888853245 has 8 divisors (see below), whose sum is σ = 16672466520. Its totient is φ = 11107187520.

The previous prime is 13888853243. The next prime is 13888853309. The reversal of 13888853245 is 54235888831.

It can be written as a sum of positive squares in 4 ways, for example, as 3059001 + 13885794244 = 1749^2 + 117838^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13888853245 - 21 = 13888853243 is a prime.

It is a super-2 number, since 2×138888532452 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13888853243) 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, 471150 + ... + 499759.

It is an arithmetic number, because the mean of its divisors is an integer number (2084058315).

Almost surely, 213888853245 is an apocalyptic number.

It is an amenable number.

13888853245 is a deficient number, since it is larger than the sum of its proper divisors (2783613275).

13888853245 is an equidigital number, since it uses as much as digits as its factorization.

13888853245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 973775.

The product of its digits is 7372800, while the sum is 55.

The spelling of 13888853245 in words is "thirteen billion, eight hundred eighty-eight million, eight hundred fifty-three thousand, two hundred forty-five".

Divisors: 1 5 2861 14305 970909 4854545 2777770649 13888853245