Search a number
-
+
20293775124480 = 21132511132921831
BaseRepresentation
bin1001001110101000000110…
…10000011110100000000000
32122212001210002012002111200
410213110003100132200000
510124443122412440410
6111054455342341200
74163114444255154
oct447240320364000
978761702162450
1020293775124480
1165145a6000210
1223390a028a800
13b4290558cc40
1450231c775064
15252d4acdc3c0
hex12750341e800

20293775124480 has 1728 divisors, whose sum is σ = 85625163711360. Its totient is φ = 4382274355200.

The previous prime is 20293775124443. The next prime is 20293775124481. The reversal of 20293775124480 is 8442157739202.

20293775124480 is a `hidden beast` number, since 2 + 0 + 2 + 9 + 3 + 7 + 7 + 512 + 44 + 80 = 666.

It is not an unprimeable number, because it can be changed into a prime (20293775124481) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 11083437165 + ... + 11083438995.

It is an arithmetic number, because the mean of its divisors is an integer number (49551599370).

Almost surely, 220293775124480 is an apocalyptic number.

20293775124480 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 20293775124480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42812581855680).

20293775124480 is an abundant number, since it is smaller than the sum of its proper divisors (65331388586880).

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

20293775124480 is a wasteful number, since it uses less digits than its factorization.

20293775124480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1946 (or 1894 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 54.

The spelling of 20293775124480 in words is "twenty trillion, two hundred ninety-three billion, seven hundred seventy-five million, one hundred twenty-four thousand, four hundred eighty".