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72053200 = 2452612953
BaseRepresentation
bin1000100101101…
…11000111010000
312000120200102001
410102313013100
5121421200300
611052203344
71533304432
oct422670720
9160520361
1072053200
11377436aa
1220169554
1311c0a23b
1497d8652
1564d416a
hex44b71d0

72053200 has 60 divisors (see below), whose sum is σ = 176005228. Its totient is φ = 28339200.

The previous prime is 72053183. The next prime is 72053221. The reversal of 72053200 is 235027.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 5271616 + 66781584 = 2296^2 + 8172^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22924 + ... + 25876.

Almost surely, 272053200 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 72053200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88002614).

72053200 is an abundant number, since it is smaller than the sum of its proper divisors (103952028).

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

72053200 is a wasteful number, since it uses less digits than its factorization.

72053200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3032 (or 3021 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 19.

The square root of 72053200 is about 8488.4156354410. The cubic root of 72053200 is about 416.1192027727.

Adding to 72053200 its reverse (235027), we get a palindrome (72288227).

The spelling of 72053200 in words is "seventy-two million, fifty-three thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 61 80 100 122 200 244 305 400 488 610 976 1220 1525 2440 2953 3050 4880 5906 6100 11812 12200 14765 23624 24400 29530 47248 59060 73825 118120 147650 180133 236240 295300 360266 590600 720532 900665 1181200 1441064 1801330 2882128 3602660 4503325 7205320 9006650 14410640 18013300 36026600 72053200