Search a number
-
+
13020486548 = 223255121637
BaseRepresentation
bin11000010000001010…
…01101101110010100
31020121102100020201112
430020011031232110
5203131221032143
65552002114152
7640442211116
oct141005155624
936542306645
1013020486548
1155817a8293
12263464b958
1312c66c5714
148b737d3b6
1551314be18
hex30814db94

13020486548 has 6 divisors (see below), whose sum is σ = 22785851466. Its totient is φ = 6510243272.

The previous prime is 13020486547. The next prime is 13020486601. The reversal of 13020486548 is 84568402031.

It can be written as a sum of positive squares in only one way, i.e., 10531274884 + 2489211664 = 102622^2 + 49892^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13020486547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1627560815 + ... + 1627560822.

It is an arithmetic number, because the mean of its divisors is an integer number (3797641911).

Almost surely, 213020486548 is an apocalyptic number.

It is an amenable number.

13020486548 is a deficient number, since it is larger than the sum of its proper divisors (9765364918).

13020486548 is a wasteful number, since it uses less digits than its factorization.

13020486548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3255121641 (or 3255121639 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 41.

Adding to 13020486548 its reverse (84568402031), we get a palindrome (97588888579).

The spelling of 13020486548 in words is "thirteen billion, twenty million, four hundred eighty-six thousand, five hundred forty-eight".

Divisors: 1 2 4 3255121637 6510243274 13020486548