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339481 = 3147233
BaseRepresentation
bin1010010111000011001
3122020200101
41102320121
541330411
611135401
72612512
oct1227031
9566611
10339481
1121206a
12144561
13bb69c
148ba09
156a8c1
hex52e19

339481 has 8 divisors (see below), whose sum is σ = 359424. Its totient is φ = 320160.

The previous prime is 339467. The next prime is 339491. The reversal of 339481 is 184933.

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

It is a cyclic number.

It is not a de Polignac number, because 339481 - 217 = 208409 is a prime.

It is a super-2 number, since 2×3394812 = 230494698722, which contains 22 as substring.

It is a Duffinian number.

339481 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (339491) 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, 1341 + ... + 1573.

It is an arithmetic number, because the mean of its divisors is an integer number (44928).

2339481 is an apocalyptic number.

339481 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

339481 is the 369-th centered pentagonal number.

It is an amenable number.

339481 is a deficient number, since it is larger than the sum of its proper divisors (19943).

339481 is a wasteful number, since it uses less digits than its factorization.

339481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311.

The product of its digits is 2592, while the sum is 28.

The square root of 339481 is about 582.6499806917. The cubic root of 339481 is about 69.7597888823.

It can be divided in two parts, 339 and 481, that added together give a triangular number (820 = T40).

The spelling of 339481 in words is "three hundred thirty-nine thousand, four hundred eighty-one".

Divisors: 1 31 47 233 1457 7223 10951 339481