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20011010010 = 2352113161297
BaseRepresentation
bin10010101000101111…
…111100011111011010
31220122121020122010220
4102220233330133122
5311440304310020
613105401220510
71305614531025
oct225057743732
956577218126
1020011010010
11853976a002
123a65791736
131b6ba61134
14d7b9501bc
157c1be3240
hex4a8bfc7da

20011010010 has 32 divisors (see below), whose sum is σ = 48254052672. Its totient is φ = 5310977280.

The previous prime is 20011010009. The next prime is 20011010011. The reversal of 20011010010 is 1001011002.

It is an interprime number because it is at equal distance from previous prime (20011010009) and next prime (20011010011).

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

It is not an unprimeable number, because it can be changed into a prime (20011010011) 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, 1574319 + ... + 1586978.

It is an arithmetic number, because the mean of its divisors is an integer number (1507939146).

Almost surely, 220011010010 is an apocalyptic number.

20011010010 is an abundant number, since it is smaller than the sum of its proper divisors (28243042662).

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

20011010010 is a wasteful number, since it uses less digits than its factorization.

20011010010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3161518.

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

Adding to 20011010010 its reverse (1001011002), we get a palindrome (21012021012).

The spelling of 20011010010 in words is "twenty billion, eleven million, ten thousand, ten".

Divisors: 1 2 3 5 6 10 15 30 211 422 633 1055 1266 2110 3165 6330 3161297 6322594 9483891 15806485 18967782 31612970 47419455 94838910 667033667 1334067334 2001101001 3335168335 4002202002 6670336670 10005505005 20011010010