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349491 = 3971201
BaseRepresentation
bin1010101010100110011
3122202102010
41111110303
542140431
611254003
72653632
oct1252463
9582363
10349491
1121963a
1214a303
13c30cc
1491519
156d846
hex55533

349491 has 8 divisors (see below), whose sum is σ = 471184. Its totient is φ = 230400.

The previous prime is 349483. The next prime is 349493. The reversal of 349491 is 194943.

349491 is nontrivially palindromic in base 14.

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

It is not a de Polignac number, because 349491 - 23 = 349483 is a prime.

It is a super-3 number, since 3×3494913 = 128064643209533313, which contains 333 as substring.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is a zygodrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (349493) 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, 310 + ... + 891.

It is an arithmetic number, because the mean of its divisors is an integer number (58898).

2349491 is an apocalyptic number.

349491 is a deficient number, since it is larger than the sum of its proper divisors (121693).

349491 is a wasteful number, since it uses less digits than its factorization.

349491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1301.

The product of its digits is 3888, while the sum is 30.

The square root of 349491 is about 591.1776382780. The cubic root of 349491 is about 70.4388081270.

It can be divided in two parts, 3 and 49491, that added together give a palindrome (49494).

The spelling of 349491 in words is "three hundred forty-nine thousand, four hundred ninety-one".

Divisors: 1 3 97 291 1201 3603 116497 349491