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272139 = 3712959
BaseRepresentation
bin1000010011100001011
3111211022020
41002130023
532202024
65455523
72212260
oct1023413
9454266
10272139
1117650a
121115a3
1396b3a
1471267
1555979
hex4270b

272139 has 8 divisors (see below), whose sum is σ = 414720. Its totient is φ = 155496.

The previous prime is 272131. The next prime is 272141. The reversal of 272139 is 931272.

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

It is not a de Polignac number, because 272139 - 23 = 272131 is a prime.

272139 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (272131) 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, 6459 + ... + 6500.

It is an arithmetic number, because the mean of its divisors is an integer number (51840).

2272139 is an apocalyptic number.

272139 is a deficient number, since it is larger than the sum of its proper divisors (142581).

272139 is a wasteful number, since it uses less digits than its factorization.

272139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12969.

The product of its digits is 756, while the sum is 24.

The square root of 272139 is about 521.6694355624. The cubic root of 272139 is about 64.8032710588.

The spelling of 272139 in words is "two hundred seventy-two thousand, one hundred thirty-nine".

Divisors: 1 3 7 21 12959 38877 90713 272139