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72253126 = 21131105943
BaseRepresentation
bin1000100111001…
…11111011000110
312000221211122201
410103213323012
5121444100001
611100345114
71535066341
oct423477306
9160854581
1072253126
113786a930
122024519a
1311c7a23a
14984b458
156523501
hex44e7ec6

72253126 has 16 divisors (see below), whose sum is σ = 122047488. Its totient is φ = 31782600.

The previous prime is 72253117. The next prime is 72253133. The reversal of 72253126 is 62135227.

It is a junction number, because it is equal to n+sod(n) for n = 72253094 and 72253103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52290 + ... + 53653.

It is an arithmetic number, because the mean of its divisors is an integer number (7627968).

Almost surely, 272253126 is an apocalyptic number.

72253126 is a deficient number, since it is larger than the sum of its proper divisors (49794362).

72253126 is a wasteful number, since it uses less digits than its factorization.

72253126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105987.

The product of its digits is 5040, while the sum is 28.

The square root of 72253126 is about 8500.1838803640. The cubic root of 72253126 is about 416.5037159791.

The spelling of 72253126 in words is "seventy-two million, two hundred fifty-three thousand, one hundred twenty-six".

Divisors: 1 2 11 22 31 62 341 682 105943 211886 1165373 2330746 3284233 6568466 36126563 72253126