Search a number
-
+
20411012025404 = 2271113291721102139
BaseRepresentation
bin1001010010000010011110…
…00111110000110000111100
32200021021101112002201122022
410221001033013300300330
510133403223034303104
6111224404532135312
74204434622422140
oct451011707606074
980237345081568
1020411012025404
11655a2971a1080
12235795a767538
13b5099a19a130
14507c80b41220
15255e0d3e6bbe
hex12904f1f0c3c

20411012025404 has 192 divisors, whose sum is σ = 49641804979200. Its totient is φ = 7083311155200.

The previous prime is 20411012025353. The next prime is 20411012025407. The reversal of 20411012025404 is 40452021011402.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20411012025407) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 199784567 + ... + 199886705.

It is an arithmetic number, because the mean of its divisors is an integer number (258551067600).

Almost surely, 220411012025404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20411012025404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24820902489600).

20411012025404 is an abundant number, since it is smaller than the sum of its proper divisors (29230792953796).

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

20411012025404 is a wasteful number, since it uses less digits than its factorization.

20411012025404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103924 (or 103922 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 26.

Adding to 20411012025404 its reverse (40452021011402), we get a palindrome (60863033036806).

The spelling of 20411012025404 in words is "twenty trillion, four hundred eleven billion, twelve million, twenty-five thousand, four hundred four".