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872508205052 = 221123793475271
BaseRepresentation
bin11001011001001011000…
…10101010011111111100
310002102002121010012100122
430230211202222133330
5103243344100030202
61504454050514112
7120015365242601
oct14544542523774
93072077105318
10872508205052
11307035154400
12121121295938
136437ac37013
14303301266a8
1517a68bee9a2
hexcb258aa7fc

872508205052 has 36 divisors (see below), whose sum is σ = 1678762412208. Its totient is φ = 396489244800.

The previous prime is 872508205031. The next prime is 872508205097. The reversal of 872508205052 is 250502805278.

It is a super-2 number, since 2×8725082050522 (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 872508204994 and 872508205012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1598177 + ... + 2073447.

It is an arithmetic number, because the mean of its divisors is an integer number (46632289228).

Almost surely, 2872508205052 is an apocalyptic number.

It is an amenable number.

872508205052 is a deficient number, since it is larger than the sum of its proper divisors (806254207156).

872508205052 is a wasteful number, since it uses less digits than its factorization.

872508205052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479090 (or 479077 counting only the distinct ones).

The product of its (nonzero) digits is 448000, while the sum is 44.

The spelling of 872508205052 in words is "eight hundred seventy-two billion, five hundred eight million, two hundred five thousand, fifty-two".

Divisors: 1 2 4 11 22 44 121 242 484 3793 7586 15172 41723 83446 166892 458953 475271 917906 950542 1835812 1901084 5227981 10455962 20911924 57507791 115015582 230031164 1802702903 3605405806 7210811612 19829731933 39659463866 79318927732 218127051263 436254102526 872508205052