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40680358321 = 367110845663
BaseRepresentation
bin100101111000101111…
…010000000110110001
310220000002021022122211
4211320233100012301
51131303132431241
630404401132121
72640045224521
oct457057200661
9126002238584
1040680358321
1116286002349
127a7392a041
133ab4005655
141d7cab1681
1510d15c9781
hex978bd01b1

40680358321 has 4 divisors (see below), whose sum is σ = 40791204352. Its totient is φ = 40569512292.

The previous prime is 40680358307. The next prime is 40680358331. The reversal of 40680358321 is 12385308604.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40680358321 - 231 = 38532874673 is a prime.

It is a super-3 number, since 3×406803583213 (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40680358331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55422465 + ... + 55423198.

It is an arithmetic number, because the mean of its divisors is an integer number (10197801088).

Almost surely, 240680358321 is an apocalyptic number.

It is an amenable number.

40680358321 is a deficient number, since it is larger than the sum of its proper divisors (110846031).

40680358321 is a wasteful number, since it uses less digits than its factorization.

40680358321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110846030.

The product of its (nonzero) digits is 138240, while the sum is 40.

It can be divided in two parts, 406803 and 58321, that added together give a square (465124 = 6822).

The spelling of 40680358321 in words is "forty billion, six hundred eighty million, three hundred fifty-eight thousand, three hundred twenty-one".

Divisors: 1 367 110845663 40680358321