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16880673138 = 237401920789
BaseRepresentation
bin11111011100010101…
…01010000101110010
31121120102222001020020
433232022222011302
5234032423020023
611431015224310
71135214232330
oct175612520562
947512861206
1016880673138
11718277763a
123331378096
1317903739b4
14b61cdab50
1568bea5de3
hex3ee2aa172

16880673138 has 16 divisors (see below), whose sum is σ = 38584395840. Its totient is φ = 4823049456.

The previous prime is 16880673137. The next prime is 16880673157. The reversal of 16880673138 is 83137608861.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16880673137) 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, 200960353 + ... + 200960436.

It is an arithmetic number, because the mean of its divisors is an integer number (2411524740).

Almost surely, 216880673138 is an apocalyptic number.

16880673138 is an abundant number, since it is smaller than the sum of its proper divisors (21703722702).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16880673138 is a wasteful number, since it uses less digits than its factorization.

16880673138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401920801.

The product of its (nonzero) digits is 1161216, while the sum is 51.

The spelling of 16880673138 in words is "sixteen billion, eight hundred eighty million, six hundred seventy-three thousand, one hundred thirty-eight".

Divisors: 1 2 3 6 7 14 21 42 401920789 803841578 1205762367 2411524734 2813445523 5626891046 8440336569 16880673138