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272142 = 232131163
BaseRepresentation
bin1000010011100001110
3111211022100
41002130032
532202032
65455530
72212263
oct1023416
9454270
10272142
11176512
121115a6
1396b40
147126a
155597c
hex4270e

272142 has 24 divisors (see below), whose sum is σ = 635544. Its totient is φ = 83664.

The previous prime is 272141. The next prime is 272171. The reversal of 272142 is 241272.

It is a super-2 number, since 2×2721422 = 148122536328, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (272141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 348 + ... + 815.

It is an arithmetic number, because the mean of its divisors is an integer number (26481).

2272142 is an apocalyptic number.

272142 is an abundant number, since it is smaller than the sum of its proper divisors (363402).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

272142 is a wasteful number, since it uses less digits than its factorization.

272142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1184 (or 1181 counting only the distinct ones).

The product of its digits is 224, while the sum is 18.

The square root of 272142 is about 521.6723109386. The cubic root of 272142 is about 64.8035091835.

It can be divided in two parts, 272 and 142, that added together give a palindrome (414).

The spelling of 272142 in words is "two hundred seventy-two thousand, one hundred forty-two", and thus it is an iban number.

Divisors: 1 2 3 6 9 13 18 26 39 78 117 234 1163 2326 3489 6978 10467 15119 20934 30238 45357 90714 136071 272142