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145073269 = 11101130579
BaseRepresentation
bin10001010010110…
…10010001110101
3101002222111010001
420221122101311
5244114321034
622221231301
73411050065
oct1051322165
9332874101
10145073269
1174987770
1240702531
1324095593
14153a53a5
15cb09a14
hex8a5a475

145073269 has 8 divisors (see below), whose sum is σ = 159829920. Its totient is φ = 130578000.

The previous prime is 145073267. The next prime is 145073281. The reversal of 145073269 is 962370541.

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

It is a cyclic number.

It is not a de Polignac number, because 145073269 - 21 = 145073267 is a prime.

It is a super-3 number, since 3×1450732693 (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145073267) 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, 64179 + ... + 66400.

It is an arithmetic number, because the mean of its divisors is an integer number (19978740).

Almost surely, 2145073269 is an apocalyptic number.

It is an amenable number.

145073269 is a deficient number, since it is larger than the sum of its proper divisors (14756651).

145073269 is a wasteful number, since it uses less digits than its factorization.

145073269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130691.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 145073269 is about 12044.6365241962. The cubic root of 145073269 is about 525.4472608845.

The spelling of 145073269 in words is "one hundred forty-five million, seventy-three thousand, two hundred sixty-nine".

Divisors: 1 11 101 1111 130579 1436369 13188479 145073269