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145171135 = 551475641
BaseRepresentation
bin10001010011100…
…10001010111111
3101010011110100201
420221302022333
5244130434020
622223304331
73411635314
oct1051621277
9333143321
10145171135
1174a4424a
124074b0a7
13240caca5
14153ccd0b
15cb28a0a
hex8a722bf

145171135 has 8 divisors (see below), whose sum is σ = 174270096. Its totient is φ = 116093760.

The previous prime is 145171123. The next prime is 145171151. The reversal of 145171135 is 531171541.

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

It is not a de Polignac number, because 145171135 - 213 = 145162943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22915 + ... + 28555.

It is an arithmetic number, because the mean of its divisors is an integer number (21783762).

Almost surely, 2145171135 is an apocalyptic number.

145171135 is a deficient number, since it is larger than the sum of its proper divisors (29098961).

145171135 is an equidigital number, since it uses as much as digits as its factorization.

145171135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10793.

The product of its digits is 2100, while the sum is 28.

The square root of 145171135 is about 12048.6984774290. The cubic root of 145171135 is about 525.5653893837.

The spelling of 145171135 in words is "one hundred forty-five million, one hundred seventy-one thousand, one hundred thirty-five".

Divisors: 1 5 5147 5641 25735 28205 29034227 145171135