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52172760 = 23354310111
BaseRepresentation
bin1100011100000…
…1011111011000
310122011122120110
43013001133120
5101324012020
65102124320
71202314113
oct307013730
9118148513
1052172760
11274a5192
12155806a0
13aa69373
146d0157a
1548a88e0
hex31c17d8

52172760 has 64 divisors (see below), whose sum is σ = 160174080. Its totient is φ = 13587840.

The previous prime is 52172759. The next prime is 52172767. The reversal of 52172760 is 6727125.

52172760 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52172767) by changing a digit.

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, 105 + ... + 10215.

It is an arithmetic number, because the mean of its divisors is an integer number (2502720).

Almost surely, 252172760 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52172760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80087040).

52172760 is an abundant number, since it is smaller than the sum of its proper divisors (108001320).

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

52172760 is a wasteful number, since it uses less digits than its factorization.

52172760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10168 (or 10164 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 52172760 is about 7223.0713688846. The cubic root of 52172760 is about 373.6640104485.

Adding to 52172760 its reverse (6727125), we get a palindrome (58899885).

The spelling of 52172760 in words is "fifty-two million, one hundred seventy-two thousand, seven hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 43 60 86 120 129 172 215 258 344 430 516 645 860 1032 1290 1720 2580 5160 10111 20222 30333 40444 50555 60666 80888 101110 121332 151665 202220 242664 303330 404440 434773 606660 869546 1213320 1304319 1739092 2173865 2608638 3478184 4347730 5217276 6521595 8695460 10434552 13043190 17390920 26086380 52172760