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40576857 = 3131223463
BaseRepresentation
bin1001101011001…
…0011101011001
32211100111222120
42122302131121
540341424412
64005411453
71001616606
oct232623531
984314876
1040576857
11209a4aa2
1211709b89
138539299
1455636ad
153867b8c
hex26b2759

40576857 has 16 divisors (see below), whose sum is σ = 54878208. Its totient is φ = 26666640.

The previous prime is 40576847. The next prime is 40576873. The reversal of 40576857 is 75867504.

It is not a de Polignac number, because 40576857 - 26 = 40576793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40576817) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87408 + ... + 87870.

It is an arithmetic number, because the mean of its divisors is an integer number (3429888).

Almost surely, 240576857 is an apocalyptic number.

It is an amenable number.

40576857 is a deficient number, since it is larger than the sum of its proper divisors (14301351).

40576857 is a wasteful number, since it uses less digits than its factorization.

40576857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820.

The product of its (nonzero) digits is 235200, while the sum is 42.

The square root of 40576857 is about 6369.9966248029. The cubic root of 40576857 is about 343.6313683419.

The spelling of 40576857 in words is "forty million, five hundred seventy-six thousand, eight hundred fifty-seven".

Divisors: 1 3 131 223 393 463 669 1389 29213 60653 87639 103249 181959 309747 13525619 40576857