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40712357 = 743135257
BaseRepresentation
bin1001101101001…
…1100010100101
32211121101212002
42123103202211
540410243412
64012335045
71003022630
oct233234245
984541762
1040712357
1120a87884
1211774485
138585b6a
14559ac17
153892dc2
hex26d38a5

40712357 has 8 divisors (see below), whose sum is σ = 47610816. Its totient is φ = 34084512.

The previous prime is 40712339. The next prime is 40712359. The reversal of 40712357 is 75321704.

40712357 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 40712357 - 28 = 40712101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40712359) 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 7 ways as a sum of consecutive naturals, for example, 67328 + ... + 67929.

It is an arithmetic number, because the mean of its divisors is an integer number (5951352).

Almost surely, 240712357 is an apocalyptic number.

It is an amenable number.

40712357 is a deficient number, since it is larger than the sum of its proper divisors (6898459).

40712357 is a wasteful number, since it uses less digits than its factorization.

40712357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135307.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 40712357 is about 6380.6235588695. The cubic root of 40712357 is about 344.0134442420.

The spelling of 40712357 in words is "forty million, seven hundred twelve thousand, three hundred fifty-seven".

Divisors: 1 7 43 301 135257 946799 5816051 40712357