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52155532 = 221113194799
BaseRepresentation
bin1100011011110…
…1010010001100
310122010202221101
43012331102030
5101322434112
65101512444
71202212642
oct306752214
9118122841
1052155532
1127493250
1215572724
13aa61580
146cd9192
1548a3757
hex31bd48c

52155532 has 48 divisors (see below), whose sum is σ = 112896000. Its totient is φ = 20727360.

The previous prime is 52155527. The next prime is 52155569. The reversal of 52155532 is 23555125.

52155532 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 52155532.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8469 + ... + 13267.

It is an arithmetic number, because the mean of its divisors is an integer number (2352000).

Almost surely, 252155532 is an apocalyptic number.

52155532 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

52155532 is an abundant number, since it is smaller than the sum of its proper divisors (60740468).

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

52155532 is a wasteful number, since it uses less digits than its factorization.

52155532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4846 (or 4844 counting only the distinct ones).

The product of its digits is 7500, while the sum is 28.

The square root of 52155532 is about 7221.8787029415. The cubic root of 52155532 is about 373.6228766444.

The spelling of 52155532 in words is "fifty-two million, one hundred fifty-five thousand, five hundred thirty-two".

Divisors: 1 2 4 11 13 19 22 26 38 44 52 76 143 209 247 286 418 494 572 836 988 2717 4799 5434 9598 10868 19196 52789 62387 91181 105578 124774 182362 211156 249548 364724 686257 1002991 1185353 1372514 2005982 2370706 2745028 4011964 4741412 13038883 26077766 52155532