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145203054 = 231910112611
BaseRepresentation
bin10001010011110…
…01111101101110
3101010020002010220
420221321331232
5244132444204
622224112210
73412130343
oct1051717556
9333202126
10145203054
1174a66227
1240765666
132410c689
14153da7ca
15cb331d9
hex8a79f6e

145203054 has 32 divisors (see below), whose sum is σ = 308741760. Its totient is φ = 45396000.

The previous prime is 145203053. The next prime is 145203061. The reversal of 145203054 is 450302541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145203053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5209 + ... + 17819.

It is an arithmetic number, because the mean of its divisors is an integer number (9648180).

Almost surely, 2145203054 is an apocalyptic number.

145203054 is an abundant number, since it is smaller than the sum of its proper divisors (163538706).

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

145203054 is a wasteful number, since it uses less digits than its factorization.

145203054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12736.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 145203054 is about 12050.0229875299. The cubic root of 145203054 is about 525.6039055169.

Adding to 145203054 its reverse (450302541), we get a palindrome (595505595).

The spelling of 145203054 in words is "one hundred forty-five million, two hundred three thousand, fifty-four".

Divisors: 1 2 3 6 19 38 57 101 114 202 303 606 1919 3838 5757 11514 12611 25222 37833 75666 239609 479218 718827 1273711 1437654 2547422 3821133 7642266 24200509 48401018 72601527 145203054