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72260371 = 3767103283
BaseRepresentation
bin1000100111010…
…01101100010011
312000222012121001
410103221230103
5121444312441
611100442431
71535126431
oct423515423
9160865531
1072260371
1137875317
1220249417
1311c80621
14984dd51
156525731
hex44e9b13

72260371 has 16 divisors (see below), whose sum is σ = 76321024. Its totient is φ = 68343264.

The previous prime is 72260369. The next prime is 72260393. The reversal of 72260371 is 17306227.

It is a cyclic number.

It is not a de Polignac number, because 72260371 - 21 = 72260369 is a prime.

It is a super-2 number, since 2×722603712 = 10443122434115282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72263371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 255196 + ... + 255478.

It is an arithmetic number, because the mean of its divisors is an integer number (4770064).

Almost surely, 272260371 is an apocalyptic number.

72260371 is a deficient number, since it is larger than the sum of its proper divisors (4060653).

72260371 is a wasteful number, since it uses less digits than its factorization.

72260371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490.

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 72260371 is about 8500.6100369326. The cubic root of 72260371 is about 416.5176368004.

Adding to 72260371 its reverse (17306227), we get a palindrome (89566598).

The spelling of 72260371 in words is "seventy-two million, two hundred sixty thousand, three hundred seventy-one".

Divisors: 1 37 67 103 283 2479 3811 6901 10471 18961 29149 255337 701557 1078513 1952983 72260371