Search a number
-
+
1255041305 = 57127282349
BaseRepresentation
bin100101011001110…
…0110100100011001
310020110120201000022
41022303212210121
510032242310210
6324311520225
743046450360
oct11263464431
93213521008
101255041305
11594490121
122b0389075
131700263bb
14bc97a7d7
15752ae155
hex4ace6919

1255041305 has 16 divisors (see below), whose sum is σ = 1734758400. Its totient is φ = 853820352.

The previous prime is 1255041247. The next prime is 1255041311. The reversal of 1255041305 is 5031405521.

It is not a de Polignac number, because 1255041305 - 26 = 1255041241 is a prime.

It is a super-2 number, since 2×12550413052 = 3150257354512206050, which contains 22 as substring.

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, 136730 + ... + 145619.

It is an arithmetic number, because the mean of its divisors is an integer number (108422400).

Almost surely, 21255041305 is an apocalyptic number.

It is an amenable number.

1255041305 is a deficient number, since it is larger than the sum of its proper divisors (479717095).

1255041305 is a wasteful number, since it uses less digits than its factorization.

1255041305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282488.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 1255041305 is about 35426.5621391633. The cubic root of 1255041305 is about 1078.6635575253.

Adding to 1255041305 its reverse (5031405521), we get a palindrome (6286446826).

The spelling of 1255041305 in words is "one billion, two hundred fifty-five million, forty-one thousand, three hundred five".

Divisors: 1 5 7 35 127 635 889 4445 282349 1411745 1976443 9882215 35858323 179291615 251008261 1255041305