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145231354 = 281718887
BaseRepresentation
bin10001010100000…
…00110111111010
3101010021111222001
420222000313322
5244134400404
622224451214
73412306012
oct1052006772
9333244861
10145231354
1174a85514
1240779b0a
132411c518
1415406c42
15cb3b7a4
hex8a80dfa

145231354 has 8 divisors (see below), whose sum is σ = 217898208. Its totient is φ = 72598620.

The previous prime is 145231351. The next prime is 145231367. The reversal of 145231354 is 453132541.

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

It is not an unprimeable number, because it can be changed into a prime (145231351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11899 + ... + 20785.

It is an arithmetic number, because the mean of its divisors is an integer number (27237276).

Almost surely, 2145231354 is an apocalyptic number.

145231354 is a deficient number, since it is larger than the sum of its proper divisors (72666854).

145231354 is an equidigital number, since it uses as much as digits as its factorization.

145231354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17060.

The product of its digits is 7200, while the sum is 28.

The square root of 145231354 is about 12051.1972019381. The cubic root of 145231354 is about 525.6380499417.

Adding to 145231354 its reverse (453132541), we get a palindrome (598363895).

The spelling of 145231354 in words is "one hundred forty-five million, two hundred thirty-one thousand, three hundred fifty-four".

Divisors: 1 2 8171 8887 16342 17774 72615677 145231354