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52200100 = 22521094789
BaseRepresentation
bin1100011100100…
…0001010100100
310122020001002001
43013020022210
5101330400400
65102455044
71202456611
oct307101244
9118201061
1052200100
1127513787
1215594484
13aa78944
146d0b508
1548b1a6a
hex31c82a4

52200100 has 36 divisors (see below), whose sum is σ = 114337300. Its totient is φ = 20684160.

The previous prime is 52200061. The next prime is 52200103. The reversal of 52200100 is 100225.

It can be written as a sum of positive squares in 6 ways, for example, as 4562496 + 47637604 = 2136^2 + 6902^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (52200103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8506 + ... + 13294.

Almost surely, 252200100 is an apocalyptic number.

52200100 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 52200100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57168650).

52200100 is an abundant number, since it is smaller than the sum of its proper divisors (62137200).

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

52200100 is a wasteful number, since it uses less digits than its factorization.

52200100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4912 (or 4905 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 10.

The square root of 52200100 is about 7224.9636677287. The cubic root of 52200100 is about 373.7292692163.

Adding to 52200100 its reverse (100225), we get a palindrome (52300325).

The spelling of 52200100 in words is "fifty-two million, two hundred thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 109 218 436 545 1090 2180 2725 4789 5450 9578 10900 19156 23945 47890 95780 119725 239450 478900 522001 1044002 2088004 2610005 5220010 10440020 13050025 26100050 52200100