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40680108 = 223271091481
BaseRepresentation
bin1001101100101…
…1101010101100
32211112202121200
42123023222230
540403230413
64011525500
71002526620
oct233135254
984482550
1040680108
1120a65627
1211759890
138574291
14558d180
153888573
hex26cbaac

40680108 has 72 divisors (see below), whose sum is σ = 118678560. Its totient is φ = 11508480.

The previous prime is 40680103. The next prime is 40680109. The reversal of 40680108 is 80108604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40680103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26728 + ... + 28208.

Almost surely, 240680108 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40680108, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59339280).

40680108 is an abundant number, since it is smaller than the sum of its proper divisors (77998452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40680108 is a wasteful number, since it uses less digits than its factorization.

40680108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1607 (or 1602 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 40680108 is about 6378.0959541230. The cubic root of 40680108 is about 343.9225871415.

The spelling of 40680108 in words is "forty million, six hundred eighty thousand, one hundred eight".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 28 36 42 63 84 109 126 218 252 327 436 654 763 981 1308 1481 1526 1962 2289 2962 3052 3924 4443 4578 5924 6867 8886 9156 10367 13329 13734 17772 20734 26658 27468 31101 41468 53316 62202 93303 124404 161429 186606 322858 373212 484287 645716 968574 1130003 1452861 1937148 2260006 2905722 3390009 4520012 5811444 6780018 10170027 13560036 20340054 40680108