Search a number
-
+
145063253 = 283512591
BaseRepresentation
bin10001010010101…
…11110101010101
3101002221222101002
420221113311111
5244114011003
622221113045
73411005636
oct1051276525
9332858332
10145063253
1174980195
12406b8785
1324090b5a
14153a188d
15cb06a88
hex8a57d55

145063253 has 4 divisors (see below), whose sum is σ = 145576128. Its totient is φ = 144550380.

The previous prime is 145063213. The next prime is 145063327. The reversal of 145063253 is 352360541.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 145063253 - 26 = 145063189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145063213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 256013 + ... + 256578.

It is an arithmetic number, because the mean of its divisors is an integer number (36394032).

Almost surely, 2145063253 is an apocalyptic number.

It is an amenable number.

145063253 is a deficient number, since it is larger than the sum of its proper divisors (512875).

145063253 is an equidigital number, since it uses as much as digits as its factorization.

145063253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512874.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 145063253 is about 12044.2207302922. The cubic root of 145063253 is about 525.4351681424.

The spelling of 145063253 in words is "one hundred forty-five million, sixty-three thousand, two hundred fifty-three".

Divisors: 1 283 512591 145063253