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20401424411120 = 245255017805139
BaseRepresentation
bin1001010001110000100111…
…01001111010100111110000
32200020100122100022110100222
410220320103221322213300
510133224104122123440
6111220141320232212
74203645213145664
oct450702351724760
980210570273328
1020401424411120
116556217241605
122355b2390b668
13b4cacca6999c
145076116888a4
15255a4b8472b5
hex128e13a7a9f0

20401424411120 has 20 divisors (see below), whose sum is σ = 47433311756040. Its totient is φ = 8160569764416.

The previous prime is 20401424411057. The next prime is 20401424411153. The reversal of 20401424411120 is 2111442410402.

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 20401424411120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127508902490 + ... + 127508902649.

It is an arithmetic number, because the mean of its divisors is an integer number (2371665587802).

Almost surely, 220401424411120 is an apocalyptic number.

20401424411120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20401424411120 is an abundant number, since it is smaller than the sum of its proper divisors (27031887344920).

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

20401424411120 is a wasteful number, since it uses less digits than its factorization.

20401424411120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255017805152 (or 255017805146 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 26.

Adding to 20401424411120 its reverse (2111442410402), we get a palindrome (22512866821522).

The spelling of 20401424411120 in words is "twenty trillion, four hundred one billion, four hundred twenty-four million, four hundred eleven thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 255017805139 510035610278 1020071220556 1275089025695 2040142441112 2550178051390 4080284882224 5100356102780 10200712205560 20401424411120