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11681315067 = 3241129712457
BaseRepresentation
bin10101110000100001…
…01011100011111011
31010011002110021210210
422320100223203323
5142410404040232
65211043042203
7562321353102
oct127020534373
933132407723
1011681315067
114a548859a4
122320070363
131142124066
147cb583039
154857c05cc
hex2b842b8fb

11681315067 has 16 divisors (see below), whose sum is σ = 15653028512. Its totient is φ = 7748628480.

The previous prime is 11681315057. The next prime is 11681315099. The reversal of 11681315067 is 76051318611.

It is not a de Polignac number, because 11681315067 - 218 = 11681052923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11681315017) 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, 931503 + ... + 943959.

It is an arithmetic number, because the mean of its divisors is an integer number (978314282).

Almost surely, 211681315067 is an apocalyptic number.

11681315067 is a deficient number, since it is larger than the sum of its proper divisors (3971713445).

11681315067 is a wasteful number, since it uses less digits than its factorization.

11681315067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13998.

The product of its (nonzero) digits is 30240, while the sum is 39.

The spelling of 11681315067 in words is "eleven billion, six hundred eighty-one million, three hundred fifteen thousand, sixty-seven".

Divisors: 1 3 241 723 1297 3891 12457 37371 312577 937731 3002137 9006411 16156729 48470187 3893771689 11681315067