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20440214100001 = 28372226904947
BaseRepresentation
bin1001010010111000110111…
…01100110101100000100001
32200101001202122221211010201
410221130123230311200201
510134343024302200001
6111250034342025201
74206520363104643
oct451343354654041
980331678854121
1020440214100001
116570711a90a23
12236154a418201
13b53672157707
14509451200893
15256a6be58501
hex12971bb35821

20440214100001 has 4 divisors (see below), whose sum is σ = 20512441005232. Its totient is φ = 20367987194772.

The previous prime is 20440214099999. The next prime is 20440214100011. The reversal of 20440214100001 is 10000141204402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20440214100001 - 21 = 20440214099999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20440214100011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36113452191 + ... + 36113452756.

It is an arithmetic number, because the mean of its divisors is an integer number (5128110251308).

Almost surely, 220440214100001 is an apocalyptic number.

It is an amenable number.

20440214100001 is a deficient number, since it is larger than the sum of its proper divisors (72226905231).

20440214100001 is an equidigital number, since it uses as much as digits as its factorization.

20440214100001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72226905230.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 20440214100001 its reverse (10000141204402), we get a palindrome (30440355304403).

The spelling of 20440214100001 in words is "twenty trillion, four hundred forty billion, two hundred fourteen million, one hundred thousand, one".

Divisors: 1 283 72226904947 20440214100001