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349401 = 31317231
BaseRepresentation
bin1010101010011011001
3122202021210
41111103121
542140101
611253333
72653443
oct1252331
9582253
10349401
11219568
1214a249
13c3060
1491493
156d7d6
hex554d9

349401 has 24 divisors (see below), whose sum is σ = 550144. Its totient is φ = 195840.

The previous prime is 349399. The next prime is 349403. The reversal of 349401 is 104943.

349401 is nontrivially palindromic in base 15.

It is an interprime number because it is at equal distance from previous prime (349399) and next prime (349403).

It is not a de Polignac number, because 349401 - 21 = 349399 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (349403) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11256 + ... + 11286.

2349401 is an apocalyptic number.

349401 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

349401 is a deficient number, since it is larger than the sum of its proper divisors (200743).

349401 is a wasteful number, since it uses less digits than its factorization.

349401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81 (or 64 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 349401 is about 591.1015141243. The cubic root of 349401 is about 70.4327612025.

The spelling of 349401 in words is "three hundred forty-nine thousand, four hundred one".

Divisors: 1 3 13 17 31 39 51 93 221 289 403 527 663 867 1209 1581 3757 6851 8959 11271 20553 26877 116467 349401