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72966883 = 116633353
BaseRepresentation
bin1000101100101…
…10001011100011
312002022002202011
410112112023203
5122134420013
611123533351
71544131303
oct426261343
9162262664
1072966883
1138208110
122052a257
131216a092
149995603
156614c3d
hex45962e3

72966883 has 4 divisors (see below), whose sum is σ = 79600248. Its totient is φ = 66333520.

The previous prime is 72966857. The next prime is 72966911. The reversal of 72966883 is 38866927.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38866927 = 113533357.

It is not a de Polignac number, because 72966883 - 25 = 72966851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72966583) 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 3 ways as a sum of consecutive naturals, for example, 3316666 + ... + 3316687.

It is an arithmetic number, because the mean of its divisors is an integer number (19900062).

Almost surely, 272966883 is an apocalyptic number.

72966883 is a deficient number, since it is larger than the sum of its proper divisors (6633365).

72966883 is a wasteful number, since it uses less digits than its factorization.

72966883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6633364.

The product of its digits is 870912, while the sum is 49.

The square root of 72966883 is about 8542.0654996318. The cubic root of 72966883 is about 417.8707104549.

The spelling of 72966883 in words is "seventy-two million, nine hundred sixty-six thousand, eight hundred eighty-three".

Divisors: 1 11 6633353 72966883