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3056781327131 = 71135472170621
BaseRepresentation
bin101100011110110110010…
…111010111101100011011
3101211020002100100120002002
4230132312113113230123
5400040242004432011
610300133240231215
7433562614400630
oct54366627275433
911736070316062
103056781327131
11a79412407214
12414511a6b50b
1319233a4b121c
14a7d40100187
15547a960ac3b
hex2c7b65d7b1b

3056781327131 has 16 divisors (see below), whose sum is σ = 3524494300608. Its totient is φ = 2596827340800.

The previous prime is 3056781327121. The next prime is 3056781327143. The reversal of 3056781327131 is 1317231876503.

It is not a de Polignac number, because 3056781327131 - 210 = 3056781326107 is a prime.

It is a super-2 number, since 2×30567813271312 (a number of 26 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3056781327121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43249001 + ... + 43319621.

It is an arithmetic number, because the mean of its divisors is an integer number (220280893788).

Almost surely, 23056781327131 is an apocalyptic number.

3056781327131 is a deficient number, since it is larger than the sum of its proper divisors (467712973477).

3056781327131 is a wasteful number, since it uses less digits than its factorization.

3056781327131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125462.

The product of its (nonzero) digits is 635040, while the sum is 47.

The spelling of 3056781327131 in words is "three trillion, fifty-six billion, seven hundred eighty-one million, three hundred twenty-seven thousand, one hundred thirty-one".

Divisors: 1 7 113 791 54721 70621 383047 494347 6183473 7980173 43284311 55861211 3864451741 27051162187 436683046733 3056781327131