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20001101010 = 23511103158787
BaseRepresentation
bin10010101000001010…
…001001010011010010
31220121220121012112220
4102220022021103102
5311430240213020
613104405001510
71305434360562
oct225012112322
956556535486
1020001101010
118534111250
123a623b3296
131b699a1b17
14d7a4d0da2
157c0dd7240
hex4a82894d2

20001101010 has 64 divisors (see below), whose sum is σ = 52418202624. Its totient is φ = 4843966400.

The previous prime is 20001101009. The next prime is 20001101039. The reversal of 20001101010 is 1010110002.

It is a super-2 number, since 2×200011010102 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a self number, because there is not a number n which added to its sum of digits gives 20001101010.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 310837 + ... + 369623.

It is an arithmetic number, because the mean of its divisors is an integer number (819034416).

Almost surely, 220001101010 is an apocalyptic number.

20001101010 is an abundant number, since it is smaller than the sum of its proper divisors (32417101614).

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

20001101010 is a wasteful number, since it uses less digits than its factorization.

20001101010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59839.

The product of its (nonzero) digits is 2, while the sum is 6.

Adding to 20001101010 its reverse (1010110002), we get a palindrome (21011211012).

The spelling of 20001101010 in words is "twenty billion, one million, one hundred one thousand, ten".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 55 66 110 165 330 1031 2062 3093 5155 6186 10310 11341 15465 22682 30930 34023 56705 58787 68046 113410 117574 170115 176361 293935 340230 352722 587870 646657 881805 1293314 1763610 1939971 3233285 3879942 6466570 9699855 19399710 60609397 121218794 181828191 303046985 363656382 606093970 666703367 909140955 1333406734 1818281910 2000110101 3333516835 4000220202 6667033670 10000550505 20001101010