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40751087 = 1313123929
BaseRepresentation
bin1001101101110…
…0111111101111
32211200100222112
42123130333233
540413013322
64013234235
71003243556
oct233347757
984610875
1040751087
1121003993
121179297b
13859a690
1455aad9d
15389e5e2
hex26dcfef

40751087 has 8 divisors (see below), whose sum is σ = 44222640. Its totient is φ = 37327680.

The previous prime is 40751059. The next prime is 40751099. The reversal of 40751087 is 78015704.

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

It is not a de Polignac number, because 40751087 - 220 = 39702511 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 (40751287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10262 + ... + 13667.

It is an arithmetic number, because the mean of its divisors is an integer number (5527830).

Almost surely, 240751087 is an apocalyptic number.

40751087 is a deficient number, since it is larger than the sum of its proper divisors (3471553).

40751087 is a wasteful number, since it uses less digits than its factorization.

40751087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24073.

The product of its (nonzero) digits is 7840, while the sum is 32.

The square root of 40751087 is about 6383.6578072450. The cubic root of 40751087 is about 344.1224972744.

The spelling of 40751087 in words is "forty million, seven hundred fifty-one thousand, eighty-seven".

Divisors: 1 13 131 1703 23929 311077 3134699 40751087