Search a number
-
+
10206451201505 = 5131506110425757
BaseRepresentation
bin1001010010000101111111…
…1001011111010111100001
31100010201122010120221002212
42110201133321133113201
52314210303001422010
633412440130451505
72102251242532046
oct224413771372741
940121563527085
1010206451201505
113285593692409
12118a0b3a33b95
13590605b70ca0
14273dcdd111cd
1512a75e929505
hex9485fe5f5e1

10206451201505 has 16 divisors (see below), whose sum is σ = 13190752427664. Its totient is φ = 7536570497280.

The previous prime is 10206451201469. The next prime is 10206451201519. The reversal of 10206451201505 is 50510215460201.

It can be written as a sum of positive squares in 8 ways, for example, as 133996995136 + 10072454206369 = 366056^2 + 3173713^2 .

It is not a de Polignac number, because 10206451201505 - 218 = 10206450939361 is a prime.

It is a super-2 number, since 2×102064512015052 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4233914 + ... + 6191843.

It is an arithmetic number, because the mean of its divisors is an integer number (824422026729).

Almost surely, 210206451201505 is an apocalyptic number.

It is an amenable number.

10206451201505 is a deficient number, since it is larger than the sum of its proper divisors (2984301226159).

10206451201505 is a wasteful number, since it uses less digits than its factorization.

10206451201505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10440836.

The product of its (nonzero) digits is 12000, while the sum is 32.

Adding to 10206451201505 its reverse (50510215460201), we get a palindrome (60716666661706).

The spelling of 10206451201505 in words is "ten trillion, two hundred six billion, four hundred fifty-one million, two hundred one thousand, five hundred five".

Divisors: 1 5 13 65 15061 75305 195793 978965 10425757 52128785 135534841 677674205 157022326177 785111630885 2041290240301 10206451201505