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40068740031 = 331430846667
BaseRepresentation
bin100101010100010010…
…000111001110111111
310211102110101220002120
4211110102013032333
51124030044140111
630223552054023
72615640446025
oct452422071677
9124373356076
1040068740031
1115aa1839491
127922b34313
133a1739c738
141d21782715
151097a64406
hex9544873bf

40068740031 has 8 divisors (see below), whose sum is σ = 55148373504. Its totient is φ = 25850799960.

The previous prime is 40068740011. The next prime is 40068740057. The reversal of 40068740031 is 13004786004.

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

It is not a de Polignac number, because 40068740031 - 223 = 40060351423 is a prime.

It is a super-2 number, since 2×400687400312 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40068739974 and 40068740001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40068740011) 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, 215423241 + ... + 215423426.

It is an arithmetic number, because the mean of its divisors is an integer number (6893546688).

Almost surely, 240068740031 is an apocalyptic number.

40068740031 is a deficient number, since it is larger than the sum of its proper divisors (15079633473).

40068740031 is a wasteful number, since it uses less digits than its factorization.

40068740031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430846701.

The product of its (nonzero) digits is 16128, while the sum is 33.

The spelling of 40068740031 in words is "forty billion, sixty-eight million, seven hundred forty thousand, thirty-one".

Divisors: 1 3 31 93 430846667 1292540001 13356246677 40068740031