Search a number
-
+
13091841385 = 572327915827
BaseRepresentation
bin11000011000101010…
…11010010101101001
31020210101121110011021
430030111122111221
5203303002411020
610003031332441
7642266546530
oct141425322551
936711543137
1013091841385
115609004227
122654521121
131308419b0c
148c2a35317
155195441aa
hex30c55a569

13091841385 has 32 divisors (see below), whose sum is σ = 18745085952. Its totient is φ = 8582397120.

The previous prime is 13091841379. The next prime is 13091841397. The reversal of 13091841385 is 58314819031.

It is not a de Polignac number, because 13091841385 - 213 = 13091833193 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2243842 + ... + 2249668.

It is an arithmetic number, because the mean of its divisors is an integer number (585783936).

Almost surely, 213091841385 is an apocalyptic number.

It is an amenable number.

13091841385 is a deficient number, since it is larger than the sum of its proper divisors (5653244567).

13091841385 is a wasteful number, since it uses less digits than its factorization.

13091841385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8653.

The product of its (nonzero) digits is 103680, while the sum is 43.

The spelling of 13091841385 in words is "thirteen billion, ninety-one million, eight hundred forty-one thousand, three hundred eighty-five".

Divisors: 1 5 7 23 35 115 161 805 2791 5827 13955 19537 29135 40789 64193 97685 134021 203945 320965 449351 670105 938147 2246755 4690735 16263157 81315785 113842099 374052611 569210495 1870263055 2618368277 13091841385