Search a number
-
+
145275425487 = 3237436262539
BaseRepresentation
bin1000011101001100010…
…1110001001011001111
3111212222111100021001100
42013103011301023033
54340011002103422
6150423312314143
713332026512353
oct2072305611317
9455874307040
10145275425487
115667a210415
12241a4542953
13109127c603a
147062107463
153ba3e307ac
hex21d31712cf

145275425487 has 12 divisors (see below), whose sum is σ = 215513694760. Its totient is φ = 94232708208.

The previous prime is 145275425479. The next prime is 145275425497. The reversal of 145275425487 is 784524572541.

145275425487 is a `hidden beast` number, since 1 + 4 + 52 + 7 + 5 + 42 + 548 + 7 = 666.

145275425487 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 145275425487 - 23 = 145275425479 is a prime.

It is a super-2 number, since 2×1452754254872 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145275425447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 218130937 + ... + 218131602.

Almost surely, 2145275425487 is an apocalyptic number.

145275425487 is a deficient number, since it is larger than the sum of its proper divisors (70238269273).

145275425487 is a wasteful number, since it uses less digits than its factorization.

145275425487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436262582 (or 436262579 counting only the distinct ones).

The product of its digits is 12544000, while the sum is 54.

The spelling of 145275425487 in words is "one hundred forty-five billion, two hundred seventy-five million, four hundred twenty-five thousand, four hundred eighty-seven".

Divisors: 1 3 9 37 111 333 436262539 1308787617 3926362851 16141713943 48425141829 145275425487