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72838038318 = 2312139673053
BaseRepresentation
bin100001111010101111…
…1000100001100101110
320222000012121201112220
41003311133010030232
52143133014211233
653243351540210
75155665052563
oct1036537041456
9228005551486
1072838038318
11289881a0291
121214938a666
136b3a402576
14374d8dc86a
151d64860eb3
hex10f57c432e

72838038318 has 8 divisors (see below), whose sum is σ = 145676076648. Its totient is φ = 24279346104.

The previous prime is 72838038283. The next prime is 72838038379. The reversal of 72838038318 is 81383083827.

It is a sphenic number, since it is the product of 3 distinct primes.

72838038318 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6069836521 + ... + 6069836532.

It is an arithmetic number, because the mean of its divisors is an integer number (18209509581).

Almost surely, 272838038318 is an apocalyptic number.

72838038318 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

72838038318 is a wasteful number, since it uses less digits than its factorization.

72838038318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12139673058.

The product of its (nonzero) digits is 1548288, while the sum is 51.

The spelling of 72838038318 in words is "seventy-two billion, eight hundred thirty-eight million, thirty-eight thousand, three hundred eighteen".

Divisors: 1 2 3 6 12139673053 24279346106 36419019159 72838038318