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82752045 = 35231311831
BaseRepresentation
bin1001110111010…
…11001000101101
312202201020110120
410323223020231
5132141031140
612113355153
72023244415
oct473531055
9182636416
1082752045
1142790922
1223868ab9
13141b4c0c
14adc1645
1573e91d0
hex4eeb22d

82752045 has 32 divisors (see below), whose sum is σ = 139290624. Its totient is φ = 41870400.

The previous prime is 82752041. The next prime is 82752053. The reversal of 82752045 is 54025728.

It is not a de Polignac number, because 82752045 - 22 = 82752041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 82751997 and 82752015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82752041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44280 + ... + 46110.

It is an arithmetic number, because the mean of its divisors is an integer number (4352832).

Almost surely, 282752045 is an apocalyptic number.

It is an amenable number.

82752045 is a deficient number, since it is larger than the sum of its proper divisors (56538579).

82752045 is a wasteful number, since it uses less digits than its factorization.

82752045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1993.

The product of its (nonzero) digits is 22400, while the sum is 33.

The square root of 82752045 is about 9096.8151020014. The cubic root of 82752045 is about 435.7722574738.

The spelling of 82752045 in words is "eighty-two million, seven hundred fifty-two thousand, forty-five".

Divisors: 1 3 5 15 23 69 115 131 345 393 655 1831 1965 3013 5493 9039 9155 15065 27465 42113 45195 126339 210565 239861 631695 719583 1199305 3597915 5516803 16550409 27584015 82752045