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354481 = 1133137
BaseRepresentation
bin1010110100010110001
3200000020221
41112202301
542320411
611333041
73004321
oct1264261
9600227
10354481
11222366
12151181
13c546a
1493281
1570071
hex568b1

354481 has 4 divisors (see below), whose sum is σ = 357732. Its totient is φ = 351232.

The previous prime is 354479. The next prime is 354533. The reversal of 354481 is 184453.

354481 = 204 + 214.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 184453 = 1391327.

It can be written as a sum of positive squares in 2 ways, for example, as 194481 + 160000 = 441^2 + 400^2 .

It is a 3-Lehmer number, since φ(354481) divides (354481-1)3.

It is a cyclic number.

It is not a de Polignac number, because 354481 - 21 = 354479 is a prime.

It is a super-2 number, since 2×3544812 = 251313558722, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (354401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1456 + ... + 1681.

It is an arithmetic number, because the mean of its divisors is an integer number (89433).

2354481 is an apocalyptic number.

It is an amenable number.

354481 is a deficient number, since it is larger than the sum of its proper divisors (3251).

354481 is a wasteful number, since it uses less digits than its factorization.

354481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3250.

The product of its digits is 1920, while the sum is 25.

The square root of 354481 is about 595.3830699642. The cubic root of 354481 is about 70.7724647412.

The spelling of 354481 in words is "three hundred fifty-four thousand, four hundred eighty-one".

Divisors: 1 113 3137 354481