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40728883 = 1323136217
BaseRepresentation
bin1001101101011…
…1100100110011
32211122020112011
42123113210303
540411311013
64012543351
71003122046
oct233274463
984566464
1040728883
1120a99238
1211781b57
138590540
1455a2c5d
153897c3d
hex26d7933

40728883 has 8 divisors (see below), whose sum is σ = 45769248. Its totient is φ = 35961024.

The previous prime is 40728881. The next prime is 40728893. The reversal of 40728883 is 38882704.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40728883 - 21 = 40728881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40728881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67810 + ... + 68407.

It is an arithmetic number, because the mean of its divisors is an integer number (5721156).

Almost surely, 240728883 is an apocalyptic number.

40728883 is a deficient number, since it is larger than the sum of its proper divisors (5040365).

40728883 is a wasteful number, since it uses less digits than its factorization.

40728883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136253.

The product of its (nonzero) digits is 86016, while the sum is 40.

The square root of 40728883 is about 6381.9184419734. The cubic root of 40728883 is about 344.0599853705.

The spelling of 40728883 in words is "forty million, seven hundred twenty-eight thousand, eight hundred eighty-three".

Divisors: 1 13 23 299 136217 1770821 3132991 40728883