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20012010001 = 487316912967
BaseRepresentation
bin10010101000110011…
…110000101000010001
31220122200010102212121
4102220303300220101
5311441033310001
613105434454241
71305626164324
oct225063605021
956580112777
1020012010001
11853a292345
123a65b94381
131b6c021349
14d7bb307bb
157c1d3e6a1
hex4a8cf0a11

20012010001 has 8 divisors (see below), whose sum is σ = 20060977280. Its totient is φ = 19963075968.

The previous prime is 20012009959. The next prime is 20012010023. The reversal of 20012010001 is 10001021002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20012010001 - 231 = 17864526353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20012010061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1536820 + ... + 1549786.

It is an arithmetic number, because the mean of its divisors is an integer number (2507622160).

Almost surely, 220012010001 is an apocalyptic number.

It is an amenable number.

20012010001 is a deficient number, since it is larger than the sum of its proper divisors (48967279).

20012010001 is a wasteful number, since it uses less digits than its factorization.

20012010001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16623.

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 20012010001 its reverse (10001021002), we get a palindrome (30013031003).

The spelling of 20012010001 in words is "twenty billion, twelve million, ten thousand, one".

Divisors: 1 487 3169 12967 1543303 6314929 41092423 20012010001