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275134145 = 511133112413
BaseRepresentation
bin10000011001100…
…011011011000001
3201011201021002112
4100121203123001
51030413243040
643145025105
76550413236
oct2031433301
9634637075
10275134145
111313403a0
1278185195
1345002990
142877d78d
151924b365
hex106636c1

275134145 has 32 divisors (see below), whose sum is σ = 400425984. Its totient is φ = 178732800.

The previous prime is 275134091. The next prime is 275134147. The reversal of 275134145 is 541431572.

It is not a de Polignac number, because 275134145 - 214 = 275117761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (275134147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15959 + ... + 28371.

It is an arithmetic number, because the mean of its divisors is an integer number (12513312).

Almost surely, 2275134145 is an apocalyptic number.

It is an amenable number.

275134145 is a deficient number, since it is larger than the sum of its proper divisors (125291839).

275134145 is a wasteful number, since it uses less digits than its factorization.

275134145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12473.

The product of its digits is 16800, while the sum is 32.

The square root of 275134145 is about 16587.1680825872. The cubic root of 275134145 is about 650.4014443220.

The spelling of 275134145 in words is "two hundred seventy-five million, one hundred thirty-four thousand, one hundred forty-five".

Divisors: 1 5 11 13 31 55 65 143 155 341 403 715 1705 2015 4433 12413 22165 62065 136543 161369 384803 682715 806845 1775059 1924015 4232833 5002439 8875295 21164165 25012195 55026829 275134145