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145526213 = 729177127
BaseRepresentation
bin10001010110010…
…00110111000101
3101010211111102202
420223020313011
5244223314323
622235044245
73414644450
oct1053106705
9333744382
10145526213
1175166aa8
12408a0685
13241c37b1
1415482497
15cb98d28
hex8ac8dc5

145526213 has 8 divisors (see below), whose sum is σ = 166396032. Its totient is φ = 124676496.

The previous prime is 145526191. The next prime is 145526219. The reversal of 145526213 is 312625541.

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

It is not a de Polignac number, because 145526213 - 216 = 145460677 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 (145526219) 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 7 ways as a sum of consecutive naturals, for example, 16856 + ... + 23982.

It is an arithmetic number, because the mean of its divisors is an integer number (20799504).

Almost surely, 2145526213 is an apocalyptic number.

It is an amenable number.

145526213 is a deficient number, since it is larger than the sum of its proper divisors (20869819).

145526213 is an equidigital number, since it uses as much as digits as its factorization.

145526213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10051.

The product of its digits is 7200, while the sum is 29.

The square root of 145526213 is about 12063.4245966890. The cubic root of 145526213 is about 525.9935386928.

The spelling of 145526213 in words is "one hundred forty-five million, five hundred twenty-six thousand, two hundred thirteen".

Divisors: 1 7 2917 7127 20419 49889 20789459 145526213