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2039381838 = 2321314875861
BaseRepresentation
bin111100110001110…
…0111111101001110
312021010110022221200
41321203213331032
513134040204323
6534211010330
7101352313434
oct17143477516
95233408850
102039381838
119571a583a
1248ab999a6
13266685720
14154bcad54
15be091443
hex798e7f4e

2039381838 has 48 divisors (see below), whose sum is σ = 4762570176. Its totient is φ = 626973120.

The previous prime is 2039381837. The next prime is 2039381857. The reversal of 2039381838 is 8381839302.

It is a junction number, because it is equal to n+sod(n) for n = 2039381793 and 2039381802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2039381833) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 345028 + ... + 350888.

It is an arithmetic number, because the mean of its divisors is an integer number (99220212).

Almost surely, 22039381838 is an apocalyptic number.

2039381838 is an abundant number, since it is smaller than the sum of its proper divisors (2723188338).

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

2039381838 is a wasteful number, since it uses less digits than its factorization.

2039381838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7369 (or 7366 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 2039381838 is about 45159.5154757001. The cubic root of 2039381838 is about 1268.1370246525.

The spelling of 2039381838 in words is "two billion, thirty-nine million, three hundred eighty-one thousand, eight hundred thirty-eight".

Divisors: 1 2 3 6 9 13 18 26 39 78 117 234 1487 2974 4461 5861 8922 11722 13383 17583 19331 26766 35166 38662 52749 57993 76193 105498 115986 152386 173979 228579 347958 457158 685737 1371474 8715307 17430614 26145921 52291842 78437763 113298991 156875526 226597982 339896973 679793946 1019690919 2039381838