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52105312044 = 2233482456593
BaseRepresentation
bin110000100001101101…
…111111011100101100
311222111022100002211000
4300201231333130230
51323202424441134
635534205400300
73523134562512
oct604155773454
9158438302730
1052105312044
11201090aa165
12a121b69090
134bb4c9a6b6
1427441a04b2
15154e60ae99
hexc21b7f72c

52105312044 has 24 divisors (see below), whose sum is σ = 135087846320. Its totient is φ = 17368437312.

The previous prime is 52105311997. The next prime is 52105312081. The reversal of 52105312044 is 44021350125.

It is a super-2 number, since 2×521053120442 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 52105311999 and 52105312017.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241228189 + ... + 241228404.

Almost surely, 252105312044 is an apocalyptic number.

52105312044 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

52105312044 is an abundant number, since it is smaller than the sum of its proper divisors (82982534276).

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

52105312044 is a wasteful number, since it uses less digits than its factorization.

52105312044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482456606 (or 482456598 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 52105312044 its reverse (44021350125), we get a palindrome (96126662169).

The spelling of 52105312044 in words is "fifty-two billion, one hundred five million, three hundred twelve thousand, forty-four".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 482456593 964913186 1447369779 1929826372 2894739558 4342109337 5789479116 8684218674 13026328011 17368437348 26052656022 52105312044