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145218 = 2324203
BaseRepresentation
bin100011011101000010
321101012110
4203131002
514121333
63040150
71143243
oct433502
9241173
10145218
119a117
1270056
1351138
143acca
152d063
hex23742

145218 has 8 divisors (see below), whose sum is σ = 290448. Its totient is φ = 48404.

The previous prime is 145213. The next prime is 145219. The reversal of 145218 is 812541.

It is a sphenic number, since it is the product of 3 distinct primes.

145218 is an admirable number.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 145194 and 145203.

It is not an unprimeable number, because it can be changed into a prime (145213) 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, 12096 + ... + 12107.

It is an arithmetic number, because the mean of its divisors is an integer number (36306).

2145218 is an apocalyptic number.

145218 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145218 is a wasteful number, since it uses less digits than its factorization.

145218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24208.

The product of its digits is 320, while the sum is 21.

The square root of 145218 is about 381.0747958079. The cubic root of 145218 is about 52.5621938669.

Adding to 145218 its reverse (812541), we get a palindrome (957759).

It can be divided in two parts, 145 and 218, that added together give a palindrome (363).

The spelling of 145218 in words is "one hundred forty-five thousand, two hundred eighteen".

Divisors: 1 2 3 6 24203 48406 72609 145218