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52503052212 = 2232132174671087
BaseRepresentation
bin110000111001011011…
…001111111110110100
312000112000202101202100
4300321123033332310
51330011240132322
640041454342100
73536034403032
oct607133177664
9160460671670
1052503052212
11202a2671246
12a2131ba930
134c494ca500
142780d37552
1515744c4dac
hexc396cffb4

52503052212 has 216 divisors, whose sum is σ = 152629940736. Its totient is φ = 15157988352.

The previous prime is 52503052211. The next prime is 52503052249. The reversal of 52503052212 is 21225030525.

52503052212 is a `hidden beast` number, since 52 + 50 + 30 + 522 + 12 = 666.

It is a super-3 number, since 3×525030522123 (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52503052211) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 48300333 + ... + 48301419.

It is an arithmetic number, because the mean of its divisors is an integer number (706620096).

Almost surely, 252503052212 is an apocalyptic number.

52503052212 is a gapful number since it is divisible by the number (52) 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 52503052212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76314970368).

52503052212 is an abundant number, since it is smaller than the sum of its proper divisors (100126888524).

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

52503052212 is a wasteful number, since it uses less digits than its factorization.

52503052212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1607 (or 1589 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

Adding to 52503052212 its reverse (21225030525), we get a palindrome (73728082737).

The spelling of 52503052212 in words is "fifty-two billion, five hundred three million, fifty-two thousand, two hundred twelve".