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275157 = 344379
BaseRepresentation
bin1000011001011010101
3111222110000
41003023111
532301112
65521513
72224131
oct1031325
9458400
10275157
11178803
12113299
139831c
14723c1
15567dc
hex432d5

275157 has 20 divisors (see below), whose sum is σ = 425920. Its totient is φ = 176904.

The previous prime is 275153. The next prime is 275159. The reversal of 275157 is 751572.

It is not a de Polignac number, because 275157 - 22 = 275153 is a prime.

It is a super-2 number, since 2×2751572 = 151422749298, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

275157 is a lucky number.

It is a zygodrome in base 3.

It is a self number, because there is not a number n which added to its sum of digits gives 275157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275153) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3444 + ... + 3522.

It is an arithmetic number, because the mean of its divisors is an integer number (21296).

2275157 is an apocalyptic number.

275157 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

275157 is a deficient number, since it is larger than the sum of its proper divisors (150763).

275157 is an equidigital number, since it uses as much as digits as its factorization.

275157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134 (or 125 counting only the distinct ones).

The product of its digits is 2450, while the sum is 27.

The square root of 275157 is about 524.5540963523. The cubic root of 275157 is about 65.0419453129.

It can be divided in two parts, 27 and 5157, that added together give a square (5184 = 722).

The spelling of 275157 in words is "two hundred seventy-five thousand, one hundred fifty-seven".

Divisors: 1 3 9 27 43 79 81 129 237 387 711 1161 2133 3397 3483 6399 10191 30573 91719 275157