Search a number
-
+
10205143040000 = 21654733413
BaseRepresentation
bin1001010010000001000111…
…1011010000000000000000
31100010121020222001102212202
42110200101323100000000
52314200113104240000
633412102240212332
72102203646410106
oct224402173200000
940117228042782
1010205143040000
113284a822202a7
1211899a990a0a8
13590457b3921c
14273d082a7c76
1512a6d4b75dd5
hex94811ed0000

10205143040000 has 340 divisors, whose sum is σ = 25861450714836. Its totient is φ = 4024958976000.

The previous prime is 10205143039943. The next prime is 10205143040047. The reversal of 10205143040000 is 4034150201.

It can be written as a sum of positive squares in 10 ways, for example, as 4870743064576 + 5334399975424 = 2206976^2 + 2309632^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2990078294 + ... + 2990081706.

Almost surely, 210205143040000 is an apocalyptic number.

10205143040000 is a gapful number since it is divisible by the number (10) 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 10205143040000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12930725357418).

10205143040000 is an abundant number, since it is smaller than the sum of its proper divisors (15656307674836).

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

10205143040000 is an frugal number, since it uses more digits than its factorization.

10205143040000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3538 (or 3493 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 10205143040000 its reverse (4034150201), we get a palindrome (10209177190201).

The spelling of 10205143040000 in words is "ten trillion, two hundred five billion, one hundred forty-three million, forty thousand".