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16389698361 = 3127139309479
BaseRepresentation
bin11110100001110011…
…01111001100111001
31120022020002221110020
433100321233030321
5232031230321421
611310200041053
71120103065101
oct172071571471
946266087406
1016389698361
116a50614a63
123214a63189
13171272b88a
14b16a14201
1565dd21dc6
hex3d0e6f339

16389698361 has 16 divisors (see below), whose sum is σ = 22183526400. Its totient is φ = 10762406928.

The previous prime is 16389698359. The next prime is 16389698371.

16389698361 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 16389698361 - 21 = 16389698359 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 16389698295 and 16389698304.

It is not an unprimeable number, because it can be changed into a prime (16389698371) 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, 101781 + ... + 207698.

It is an arithmetic number, because the mean of its divisors is an integer number (1386470400).

Almost surely, 216389698361 is an apocalyptic number.

It is an amenable number.

16389698361 is a deficient number, since it is larger than the sum of its proper divisors (5793828039).

16389698361 is a wasteful number, since it uses less digits than its factorization.

16389698361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309748.

The product of its digits is 10077696, while the sum is 60.

The spelling of 16389698361 in words is "sixteen billion, three hundred eighty-nine million, six hundred ninety-eight thousand, three hundred sixty-one".

Divisors: 1 3 127 139 381 417 17653 52959 309479 928437 39303833 43017581 117911499 129052743 5463232787 16389698361