Search a number
-
+
1312504525025 = 52291810351069
BaseRepresentation
bin10011000110010111010…
…111011011000011100001
311122110210200211010210122
4103012113113123003201
5133001002124300100
62442542315010025
7163553041246511
oct23062727330341
94573720733718
101312504525025
114666a26509a1
12192457139915
13969cb939885
14477501b9841
152421bb04985
hex131975db0e1

1312504525025 has 12 divisors (see below), whose sum is σ = 1683626495100. Its totient is φ = 1013796598080.

The previous prime is 1312504524931. The next prime is 1312504525063. The reversal of 1312504525025 is 5205254052131.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 20879094016 + 1291625431009 = 144496^2 + 1136497^2 .

It is not a de Polignac number, because 1312504525025 - 228 = 1312236089569 is a prime.

It is a super-2 number, since 2×13125045250252 (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 905174810 + ... + 905176259.

It is an arithmetic number, because the mean of its divisors is an integer number (140302207925).

Almost surely, 21312504525025 is an apocalyptic number.

It is an amenable number.

1312504525025 is a deficient number, since it is larger than the sum of its proper divisors (371121970075).

1312504525025 is a wasteful number, since it uses less digits than its factorization.

1312504525025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1810351108 (or 1810351103 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 35.

Adding to 1312504525025 its reverse (5205254052131), we get a palindrome (6517758577156).

The spelling of 1312504525025 in words is "one trillion, three hundred twelve billion, five hundred four million, five hundred twenty-five thousand, twenty-five".

Divisors: 1 5 25 29 145 725 1810351069 9051755345 45258776725 52500181001 262500905005 1312504525025