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52031500 = 2253195477
BaseRepresentation
bin1100011001111…
…1000000001100
310121220110210121
43012133000030
5101310002000
65055114324
71201155223
oct306370014
9117813717
1052031500
1127409044
12155129a4
13aa19c91
146ca5cba
15487bb1a
hex319f00c

52031500 has 48 divisors (see below), whose sum is σ = 119639520. Its totient is φ = 19713600.

The previous prime is 52031489. The next prime is 52031513. The reversal of 52031500 is 513025.

It is a zygodrome in base 2.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6762 + ... + 12238.

It is an arithmetic number, because the mean of its divisors is an integer number (2492490).

Almost surely, 252031500 is an apocalyptic number.

52031500 is a gapful number since it is divisible by the number (50) 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 52031500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59819760).

52031500 is an abundant number, since it is smaller than the sum of its proper divisors (67608020).

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

52031500 is a wasteful number, since it uses less digits than its factorization.

52031500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5515 (or 5503 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 16.

The square root of 52031500 is about 7213.2863522808. The cubic root of 52031500 is about 373.3264684820.

Adding to 52031500 its reverse (513025), we get a palindrome (52544525).

The spelling of 52031500 in words is "fifty-two million, thirty-one thousand, five hundred".

Divisors: 1 2 4 5 10 19 20 25 38 50 76 95 100 125 190 250 380 475 500 950 1900 2375 4750 5477 9500 10954 21908 27385 54770 104063 109540 136925 208126 273850 416252 520315 547700 684625 1040630 1369250 2081260 2601575 2738500 5203150 10406300 13007875 26015750 52031500