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20044411401 = 371801529981
BaseRepresentation
bin10010101010101111…
…010111001000001001
31220201221002121020110
4102222233113020021
5312022332131101
613112553144533
71306501454130
oct225257271011
956657077213
1020044411401
118556602a63
123a749bb149
131b75957381
14d82166917
157c4adecd6
hex4aabd7209

20044411401 has 16 divisors (see below), whose sum is σ = 30560882048. Its totient is φ = 11447568000.

The previous prime is 20044411379. The next prime is 20044411411. The reversal of 20044411401 is 10411444002.

It is not a de Polignac number, because 20044411401 - 25 = 20044411369 is a prime.

It is a super-3 number, since 3×200444114013 (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20044411411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 227170 + ... + 302811.

It is an arithmetic number, because the mean of its divisors is an integer number (1910055128).

Almost surely, 220044411401 is an apocalyptic number.

20044411401 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20044411401 is a deficient number, since it is larger than the sum of its proper divisors (10516470647).

20044411401 is a wasteful number, since it uses less digits than its factorization.

20044411401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531792.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 20044411401 its reverse (10411444002), we get a palindrome (30455855403).

The spelling of 20044411401 in words is "twenty billion, forty-four million, four hundred eleven thousand, four hundred one".

Divisors: 1 3 7 21 1801 5403 12607 37821 529981 1589943 3709867 11129601 954495781 2863487343 6681470467 20044411401