Search a number
-
+
2054421411420 = 22357247531631721
BaseRepresentation
bin11101111001010101000…
…011101111011001011100
321021101211011022222211110
4131321111003233121130
5232124423340131140
64211442124422020
7301266322604100
oct35712503573134
97241734288743
102054421411420
11722303367764
122921b16a7910
1311b967322a71
14716124ad900
1538690ada380
hex1de550ef65c

2054421411420 has 576 divisors, whose sum is σ = 7009646708736. Its totient is φ = 447892623360.

The previous prime is 2054421411409. The next prime is 2054421411439. The reversal of 2054421411420 is 241141244502.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1193736160 + ... + 1193737880.

It is an arithmetic number, because the mean of its divisors is an integer number (12169525536).

Almost surely, 22054421411420 is an apocalyptic number.

2054421411420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2054421411420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3504823354368).

2054421411420 is an abundant number, since it is smaller than the sum of its proper divisors (4955225297316).

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

2054421411420 is a wasteful number, since it uses less digits than its factorization.

2054421411420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2010 (or 2001 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 30.

Adding to 2054421411420 its reverse (241141244502), we get a palindrome (2295562655922).

The spelling of 2054421411420 in words is "two trillion, fifty-four billion, four hundred twenty-one million, four hundred eleven thousand, four hundred twenty".