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272172 = 22337613
BaseRepresentation
bin1000010011100101100
3111211100110
41002130230
532202142
65500020
72212335
oct1023454
9454313
10272172
1117653a
12111610
1396b64
147128c
155599c
hex4272c

272172 has 24 divisors (see below), whose sum is σ = 653296. Its totient is φ = 88128.

The previous prime is 272171. The next prime is 272179. The reversal of 272172 is 271272.

It is a plaindrome in base 15.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 272172.

It is not an unprimeable number, because it can be changed into a prime (272171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138 + ... + 750.

2272172 is an apocalyptic number.

It is an amenable number.

272172 is an abundant number, since it is smaller than the sum of its proper divisors (381124).

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

272172 is a wasteful number, since it uses less digits than its factorization.

272172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657 (or 655 counting only the distinct ones).

The product of its digits is 392, while the sum is 21.

The square root of 272172 is about 521.7010638287. The cubic root of 272172 is about 64.8058903348.

Subtracting from 272172 its reverse (271272), we obtain a square (900 = 302).

It can be divided in two parts, 272 and 172, that added together give a palindrome (444).

The spelling of 272172 in words is "two hundred seventy-two thousand, one hundred seventy-two", and thus it is an iban number.

Divisors: 1 2 3 4 6 12 37 74 111 148 222 444 613 1226 1839 2452 3678 7356 22681 45362 68043 90724 136086 272172