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52200320 = 27581563
BaseRepresentation
bin1100011100100…
…0001110000000
310122020001101012
43013020032000
5101330402240
65102500052
71202460344
oct307101600
9118201335
1052200320
1127513967
1215594628
13aa78a83
146d0b624
1548b1b65
hex31c8380

52200320 has 32 divisors (see below), whose sum is σ = 124792920. Its totient is φ = 20879872.

The previous prime is 52200307. The next prime is 52200331. The reversal of 52200320 is 2300225.

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 52200295 and 52200304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40142 + ... + 41421.

Almost surely, 252200320 is an apocalyptic number.

It is an amenable number.

52200320 is an abundant number, since it is smaller than the sum of its proper divisors (72592600).

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

52200320 is an equidigital number, since it uses as much as digits as its factorization.

52200320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81582 (or 81570 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 14.

The square root of 52200320 is about 7224.9788927027. The cubic root of 52200320 is about 373.7297942492.

Adding to 52200320 its reverse (2300225), we get a palindrome (54500545).

The spelling of 52200320 in words is "fifty-two million, two hundred thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 320 640 81563 163126 326252 407815 652504 815630 1305008 1631260 2610016 3262520 5220032 6525040 10440064 13050080 26100160 52200320