Search a number
-
+
13021300004 = 2218128016421
BaseRepresentation
bin11000010000010000…
…10100010100100100
31020121110212120120112
430020020110110210
5203131423100004
65552031352152
7640452136526
oct141010242444
936543776515
1013021300004
115582203469
122634982658
1312c691ba5b
148b7511a16
1551325ce6e
hex308214524

13021300004 has 24 divisors (see below), whose sum is σ = 22924921656. Its totient is φ = 6471360000.

The previous prime is 13021299997. The next prime is 13021300007. The reversal of 13021300004 is 40000312031.

It can be written as a sum of positive squares in 4 ways, for example, as 43533604 + 12977766400 = 6598^2 + 113920^2 .

It is not an unprimeable number, because it can be changed into a prime (13021300007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2024714 + ... + 2031134.

It is an arithmetic number, because the mean of its divisors is an integer number (955205069).

Almost surely, 213021300004 is an apocalyptic number.

It is an amenable number.

13021300004 is a deficient number, since it is larger than the sum of its proper divisors (9903621652).

13021300004 is a wasteful number, since it uses less digits than its factorization.

13021300004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9407 (or 9405 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 13021300004 its reverse (40000312031), we get a palindrome (53021612035).

The spelling of 13021300004 in words is "thirteen billion, twenty-one million, three hundred thousand, four".

Divisors: 1 2 4 181 362 724 2801 5602 6421 11204 12842 25684 506981 1013962 1162201 2027924 2324402 4648804 17985221 35970442 71940884 3255325001 6510650002 13021300004