Search a number
-
+
145433405 = 5132977153
BaseRepresentation
bin10001010101100…
…10001100111101
3101010122210010102
420222302030331
5244212332110
622233050445
73414110045
oct1052621475
9333583112
10145433405
11751032a7
1240856a25
1324190490
141545a725
15cb7b5a5
hex8ab233d

145433405 has 16 divisors (see below), whose sum is σ = 194428080. Its totient is φ = 103692288.

The previous prime is 145433401. The next prime is 145433411. The reversal of 145433405 is 504334541.

145433405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 2343961 + 143089444 = 1531^2 + 11962^2 .

It is a cyclic number.

It is not a de Polignac number, because 145433405 - 22 = 145433401 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145433401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36692 + ... + 40461.

It is an arithmetic number, because the mean of its divisors is an integer number (12151755).

Almost surely, 2145433405 is an apocalyptic number.

It is an amenable number.

145433405 is a deficient number, since it is larger than the sum of its proper divisors (48994675).

145433405 is a wasteful number, since it uses less digits than its factorization.

145433405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77200.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 145433405 is about 12059.5773143174. The cubic root of 145433405 is about 525.8816990720.

Adding to 145433405 its reverse (504334541), we get a palindrome (649767946).

The spelling of 145433405 in words is "one hundred forty-five million, four hundred thirty-three thousand, four hundred five".

Divisors: 1 5 13 29 65 145 377 1885 77153 385765 1002989 2237437 5014945 11187185 29086681 145433405