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2001002020010 = 257192296365519
BaseRepresentation
bin11101000111100101000…
…000111011110010101010
321002021221021022202000022
4131013211000323302222
5230241023004120020
64131125253440442
7264365460351140
oct35074500736252
97067837282008
102001002020010
117016905242a4
12283983640122
1311690302ab16
146cbc59a5590
15370b5e5c625
hex1d1e503bcaa

2001002020010 has 64 divisors (see below), whose sum is σ = 4333251686400. Its totient is φ = 649911304512.

The previous prime is 2001002020001. The next prime is 2001002020081. The reversal of 2001002020010 is 100202001002.

It is a self number, because there is not a number n which added to its sum of digits gives 2001002020010.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30508031 + ... + 30573549.

It is an arithmetic number, because the mean of its divisors is an integer number (67707057600).

Almost surely, 22001002020010 is an apocalyptic number.

2001002020010 is an abundant number, since it is smaller than the sum of its proper divisors (2332249666390).

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

2001002020010 is a wasteful number, since it uses less digits than its factorization.

2001002020010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88515.

The product of its (nonzero) digits is 8, while the sum is 8.

Adding to 2001002020010 its reverse (100202001002), we get a palindrome (2101204021012).

The spelling of 2001002020010 in words is "two trillion, one billion, two million, twenty thousand, ten".

Divisors: 1 2 5 7 10 14 19 35 38 70 95 133 190 266 665 1330 22963 45926 65519 114815 131038 160741 229630 321482 327595 436297 458633 655190 803705 872594 917266 1244861 1607410 2181485 2293165 2489722 3054079 4362970 4586330 6108158 6224305 8714027 12448610 15270395 17428054 30540790 43570135 87140270 1504512797 3009025594 7522563985 10531589579 15045127970 21063179158 28585743143 52657947895 57171486286 105315895790 142928715715 200100202001 285857431430 400200404002 1000501010005 2001002020010