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52121468 = 2272964189
BaseRepresentation
bin1100011011010…
…0111101111100
310122002001012202
43012310331330
5101320341333
65101051032
71202011430
oct306647574
9118061182
1052121468
112746a6a3
1215556a78
13aa4bc09
146cca9c0
1548985e8
hex31b4f7c

52121468 has 24 divisors (see below), whose sum is σ = 107839200. Its totient is φ = 21567168.

The previous prime is 52121467. The next prime is 52121471. The reversal of 52121468 is 86412125.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a self number, because there is not a number n which added to its sum of digits gives 52121468.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52121467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31283 + ... + 32906.

It is an arithmetic number, because the mean of its divisors is an integer number (4493300).

Almost surely, 252121468 is an apocalyptic number.

52121468 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is an amenable number.

52121468 is an abundant number, since it is smaller than the sum of its proper divisors (55717732).

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

52121468 is a wasteful number, since it uses less digits than its factorization.

52121468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64229 (or 64227 counting only the distinct ones).

The product of its digits is 3840, while the sum is 29.

The square root of 52121468 is about 7219.5199286379. The cubic root of 52121468 is about 373.5415183111.

The spelling of 52121468 in words is "fifty-two million, one hundred twenty-one thousand, four hundred sixty-eight".

Divisors: 1 2 4 7 14 28 29 58 116 203 406 812 64189 128378 256756 449323 898646 1797292 1861481 3722962 7445924 13030367 26060734 52121468