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72814383 = 341752879
BaseRepresentation
bin1000101011100…
…00111100101111
312002000100120000
410111300330233
5122120030013
611120355343
71542624555
oct425607457
9162010500
1072814383
1138113584
1220475b53
1312115845
149955bd5
1565d4973
hex4570f2f

72814383 has 20 divisors (see below), whose sum is σ = 115172640. Its totient is φ = 45686592.

The previous prime is 72814337. The next prime is 72814387. The reversal of 72814383 is 38341827.

It is not a de Polignac number, because 72814383 - 28 = 72814127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72814387) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 25063 + ... + 27816.

It is an arithmetic number, because the mean of its divisors is an integer number (5758632).

Almost surely, 272814383 is an apocalyptic number.

72814383 is a deficient number, since it is larger than the sum of its proper divisors (42358257).

72814383 is a wasteful number, since it uses less digits than its factorization.

72814383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52908 (or 52899 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 72814383 is about 8533.1344182545. The cubic root of 72814383 is about 417.5793923144.

It can be divided in two parts, 7281 and 4383, that added together give a square (11664 = 1082).

The spelling of 72814383 in words is "seventy-two million, eight hundred fourteen thousand, three hundred eighty-three".

Divisors: 1 3 9 17 27 51 81 153 459 1377 52879 158637 475911 898943 1427733 2696829 4283199 8090487 24271461 72814383