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1086231 = 31272851
BaseRepresentation
bin100001001001100010111
32001012000210
410021030113
5234224411
635140503
712142566
oct4111427
92035023
101086231
11682113
12444733
132c0553
14203bdd
15166ca6
hex109317

1086231 has 8 divisors (see below), whose sum is σ = 1460224. Its totient is φ = 718200.

The previous prime is 1086203. The next prime is 1086247. The reversal of 1086231 is 1326801.

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

It is not a de Polignac number, because 1086231 - 25 = 1086199 is a prime.

It is a super-2 number, since 2×10862312 = 2359795570722, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1086198 and 1086207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1086251) 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, 1045 + ... + 1806.

It is an arithmetic number, because the mean of its divisors is an integer number (182528).

21086231 is an apocalyptic number.

1086231 is a deficient number, since it is larger than the sum of its proper divisors (373993).

1086231 is a wasteful number, since it uses less digits than its factorization.

1086231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2981.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 1086231 is about 1042.2240642012. The cubic root of 1086231 is about 102.7954907761.

The spelling of 1086231 in words is "one million, eighty-six thousand, two hundred thirty-one".

Divisors: 1 3 127 381 2851 8553 362077 1086231