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40680583 = 231768721
BaseRepresentation
bin1001101100101…
…1110010000111
32211112210021021
42123023302013
540403234313
64011532011
71002531166
oct233136207
984483237
1040680583
1120a65a19
121175a007
138574568
14558d3dd
15388878d
hex26cbc87

40680583 has 4 divisors (see below), whose sum is σ = 42449328. Its totient is φ = 38911840.

The previous prime is 40680581. The next prime is 40680599. The reversal of 40680583 is 38508604.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40680583 - 21 = 40680581 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 (40680581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 884338 + ... + 884383.

It is an arithmetic number, because the mean of its divisors is an integer number (10612332).

Almost surely, 240680583 is an apocalyptic number.

40680583 is a deficient number, since it is larger than the sum of its proper divisors (1768745).

40680583 is a wasteful number, since it uses less digits than its factorization.

40680583 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1768744.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 40680583 is about 6378.1331908326. The cubic root of 40680583 is about 343.9239257368.

The spelling of 40680583 in words is "forty million, six hundred eighty thousand, five hundred eighty-three".

Divisors: 1 23 1768721 40680583