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72200752 = 2413714889
BaseRepresentation
bin1000100110110…
…11001000110000
312000212011210221
410103123020300
5121440411002
611055302424
71534460551
oct423331060
9160764727
1072200752
1137834548
122021aa14
1311c5c450
149836328
156512c37
hex44db230

72200752 has 40 divisors (see below), whose sum is σ = 152802720. Its totient is φ = 32847360.

The previous prime is 72200747. The next prime is 72200753. The reversal of 72200752 is 25700227.

It is not an unprimeable number, because it can be changed into a prime (72200753) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 12324 + ... + 17212.

It is an arithmetic number, because the mean of its divisors is an integer number (3820068).

Almost surely, 272200752 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 72200752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76401360).

72200752 is an abundant number, since it is smaller than the sum of its proper divisors (80601968).

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

72200752 is a wasteful number, since it uses less digits than its factorization.

72200752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4981 (or 4975 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 25.

The square root of 72200752 is about 8497.1025649924. The cubic root of 72200752 is about 416.4030548741.

Adding to 72200752 its reverse (25700227), we get a palindrome (97900979).

The spelling of 72200752 in words is "seventy-two million, two hundred thousand, seven hundred fifty-two".

Divisors: 1 2 4 8 13 16 26 52 71 104 142 208 284 568 923 1136 1846 3692 4889 7384 9778 14768 19556 39112 63557 78224 127114 254228 347119 508456 694238 1016912 1388476 2776952 4512547 5553904 9025094 18050188 36100376 72200752