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40680311813 = 313074274489
BaseRepresentation
bin100101111000101111…
…000100110000000101
310220000002011221212022
4211320233010300011
51131303124434223
630404400132525
72640044642111
oct457057046005
9126002157768
1040680311813
1116285a80409
127a73907145
133ab3cba42b
141d7ca9c741
1510d15baac8
hex978bc4c05

40680311813 has 8 divisors (see below), whose sum is σ = 42129373440. Its totient is φ = 39239799840.

The previous prime is 40680311773. The next prime is 40680311821. The reversal of 40680311813 is 31811308604.

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

It is a cyclic number.

It is not a de Polignac number, because 40680311813 - 28 = 40680311557 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 (40680311863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2127728 + ... + 2146761.

It is an arithmetic number, because the mean of its divisors is an integer number (5266171680).

Almost surely, 240680311813 is an apocalyptic number.

It is an amenable number.

40680311813 is a deficient number, since it is larger than the sum of its proper divisors (1449061627).

40680311813 is a wasteful number, since it uses less digits than its factorization.

40680311813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4274827.

The product of its (nonzero) digits is 13824, while the sum is 35.

The spelling of 40680311813 in words is "forty billion, six hundred eighty million, three hundred eleven thousand, eight hundred thirteen".

Divisors: 1 31 307 9517 4274489 132509159 1312268123 40680311813