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145184357 = 548326479
BaseRepresentation
bin10001010011101…
…01011001100101
3101010012010111102
420221311121211
5244131344412
622223445445
73412022003
oct1051653145
9333163442
10145184357
1174a5317a
1240756885
1324104006
14153d3a73
15cb2c8c2
hex8a75665

145184357 has 4 divisors (see below), whose sum is σ = 145216320. Its totient is φ = 145152396.

The previous prime is 145184327. The next prime is 145184359. The reversal of 145184357 is 753481541.

145184357 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 753481541 = 2332760067.

It is a cyclic number.

It is not a de Polignac number, because 145184357 - 26 = 145184293 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145184357.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145184359) 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, 7757 + ... + 18722.

It is an arithmetic number, because the mean of its divisors is an integer number (36304080).

Almost surely, 2145184357 is an apocalyptic number.

It is an amenable number.

145184357 is a deficient number, since it is larger than the sum of its proper divisors (31963).

145184357 is an equidigital number, since it uses as much as digits as its factorization.

145184357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31962.

The product of its digits is 67200, while the sum is 38.

The square root of 145184357 is about 12049.2471549056. The cubic root of 145184357 is about 525.5813448389.

It can be divided in two parts, 145184 and 357, that added together give a palindrome (145541).

The spelling of 145184357 in words is "one hundred forty-five million, one hundred eighty-four thousand, three hundred fifty-seven".

Divisors: 1 5483 26479 145184357