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164787142884 = 22373136774549
BaseRepresentation
bin1001100101111000010…
…1000100000011100100
3120202100022002012111020
42121132011010003210
510144441002033014
6203411400211140
714622402414000
oct2313605040344
9522308065436
10164787142884
11639820564a1
1227b2aa69ab0
1312701c8c050
147d93607700
154446d9a1a9
hex265e1440e4

164787142884 has 192 divisors, whose sum is σ = 483712320000. Its totient is φ = 43386610176.

The previous prime is 164787142873. The next prime is 164787142903. The reversal of 164787142884 is 488241787461.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 36222642 + ... + 36227190.

It is an arithmetic number, because the mean of its divisors is an integer number (2519335000).

Almost surely, 2164787142884 is an apocalyptic number.

164787142884 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 164787142884, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (241856160000).

164787142884 is an abundant number, since it is smaller than the sum of its proper divisors (318925177116).

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

164787142884 is a wasteful number, since it uses less digits than its factorization.

164787142884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5267 (or 5251 counting only the distinct ones).

The product of its digits is 19267584, while the sum is 60.

The spelling of 164787142884 in words is "one hundred sixty-four billion, seven hundred eighty-seven million, one hundred forty-two thousand, eight hundred eighty-four".