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145074511 = 910315937
BaseRepresentation
bin10001010010110…
…10100101001111
3101002222112211001
420221122211033
5244114341021
622221241131
73411053521
oct1051324517
9332875731
10145074511
117498869a
12407031a7
132409600a
14153a5a11
15cb0a091
hex8a5a94f

145074511 has 4 divisors (see below), whose sum is σ = 145099552. Its totient is φ = 145049472.

The previous prime is 145074499. The next prime is 145074551. The reversal of 145074511 is 115470541.

145074511 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 145074511 - 213 = 145066319 is a prime.

It is a super-3 number, since 3×1450745113 (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 self number, because there is not a number n which added to its sum of digits gives 145074511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145074551) 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, 1135 + ... + 17071.

It is an arithmetic number, because the mean of its divisors is an integer number (36274888).

Almost surely, 2145074511 is an apocalyptic number.

145074511 is a deficient number, since it is larger than the sum of its proper divisors (25041).

145074511 is an equidigital number, since it uses as much as digits as its factorization.

145074511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25040.

The product of its (nonzero) digits is 2800, while the sum is 28.

The square root of 145074511 is about 12044.6880823042. The cubic root of 145074511 is about 525.4487603651.

The spelling of 145074511 in words is "one hundred forty-five million, seventy-four thousand, five hundred eleven".

Divisors: 1 9103 15937 145074511