Search a number
-
+
994721136640000 = 2285472112
BaseRepresentation
bin1110001000101100011001000…
…0000000000000000000000000
311211110000102010022102200220021
43202023012100000000000000
52020340002341434440000
613443332325345223224
7416344142032050100
oct34213062000000000
94743012108380807
10994721136640000
11268a48957341300
1293693754031b14
1333906a5417b4a3
141378ca8d22d200
1579eeea5d5911a
hex388b190000000

994721136640000 has 1305 divisors, whose sum is σ = 3178684351883271. Its totient is φ = 310042951680000.

The previous prime is 994721136639961. The next prime is 994721136640019. The reversal of 994721136640000 is 46631127499.

The square root of 994721136640000 is 31539200.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 2 ways, for example, as 77986137112576 + 916734999527424 = 8830976^2 + 30277632^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 994721136640000.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 90429194239995 + ... + 90429194240005.

Almost surely, 2994721136640000 is an apocalyptic number.

994721136640000 is a droll number since its even prime factors and its odd prime factors have the same sum.

994721136640000 is the 31539200-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 994721136640000

994721136640000 is an abundant number, since it is smaller than the sum of its proper divisors (2183963215243271).

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

994721136640000 is an frugal number, since it uses more digits than its factorization.

994721136640000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112 (or 25 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 52.

Adding to 994721136640000 its reverse (46631127499), we get a palindrome (994767767767499).

The spelling of 994721136640000 in words is "nine hundred ninety-four trillion, seven hundred twenty-one billion, one hundred thirty-six million, six hundred forty thousand".