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16869413049 = 317991934183
BaseRepresentation
bin11111011010111111…
…01101000010111001
31121112122202222021220
433231133231002321
5234022032204144
611425534022253
71135016434146
oct175537550271
947478688256
1016869413049
117177386785
123329647989
13178ac30718
14b606093cd
1568aece919
hex3ed7ed0b9

16869413049 has 16 divisors (see below), whose sum is σ = 22643481600. Its totient is φ = 11170951056.

The previous prime is 16869413047. The next prime is 16869413053. The reversal of 16869413049 is 94031496861.

It is not a de Polignac number, because 16869413049 - 21 = 16869413047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16869412992 and 16869413010.

It is not an unprimeable number, because it can be changed into a prime (16869413047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 476412 + ... + 510594.

It is an arithmetic number, because the mean of its divisors is an integer number (1415217600).

Almost surely, 216869413049 is an apocalyptic number.

It is an amenable number.

16869413049 is a deficient number, since it is larger than the sum of its proper divisors (5774068551).

16869413049 is a wasteful number, since it uses less digits than its factorization.

16869413049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35284.

The product of its (nonzero) digits is 1119744, while the sum is 51.

The spelling of 16869413049 in words is "sixteen billion, eight hundred sixty-nine million, four hundred thirteen thousand, forty-nine".

Divisors: 1 3 179 537 919 2757 34183 102549 164501 493503 6118757 18356271 31414177 94242531 5623137683 16869413049