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1020886831746 = 23318905311699
BaseRepresentation
bin11101101101100011001…
…10001101001010000010
310121121002100200102012000
432312301212031022002
5113211234012103441
62100553335444430
7133520345615145
oct16666146151202
93547070612160
101020886831746
11363a57002811
12145a30b26716
1375366609192
14375a841c05c
151b8502ac2b6
hexedb198d282

1020886831746 has 16 divisors (see below), whose sum is σ = 2268637404000. Its totient is φ = 340295610564.

The previous prime is 1020886831703. The next prime is 1020886831753. The reversal of 1020886831746 is 6471386880201.

1020886831746 is a `hidden beast` number, since 1 + 0 + 208 + 86 + 8 + 317 + 46 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 18905311699 = 1020886831746 / (1 + 0 + 2 + 0 + 8 + 8 + 6 + 8 + 3 + 1 + 7 + 4 + 6).

It is a junction number, because it is equal to n+sod(n) for n = 1020886831692 and 1020886831701.

It is an unprimeable number.

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, 9452655796 + ... + 9452655903.

It is an arithmetic number, because the mean of its divisors is an integer number (141789837750).

Almost surely, 21020886831746 is an apocalyptic number.

1020886831746 is an abundant number, since it is smaller than the sum of its proper divisors (1247750572254).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1020886831746 is a wasteful number, since it uses less digits than its factorization.

1020886831746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18905311710 (or 18905311704 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 54.

The spelling of 1020886831746 in words is "one trillion, twenty billion, eight hundred eighty-six million, eight hundred thirty-one thousand, seven hundred forty-six".

Divisors: 1 2 3 6 9 18 27 54 18905311699 37810623398 56715935097 113431870194 170147805291 340295610582 510443415873 1020886831746