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353431 = 1331877
BaseRepresentation
bin1010110010010010111
3122221211001
41112102113
542302211
611324131
73001261
oct1262227
9587731
10353431
112215a1
12150647
13c4b40
1492b31
156eac1
hex56497

353431 has 8 divisors (see below), whose sum is σ = 393344. Its totient is φ = 315360.

The previous prime is 353429. The next prime is 353443. The reversal of 353431 is 134353.

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 353431 - 21 = 353429 is a prime.

It is a super-2 number, since 2×3534312 = 249826943522, which contains 22 as substring.

It is the 595-th Hogben number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 353399 and 353408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (353401) by changing a digit.

It is a nontrivial repunit in base 594.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36 + ... + 841.

It is an arithmetic number, because the mean of its divisors is an integer number (49168).

2353431 is an apocalyptic number.

353431 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

353431 is a deficient number, since it is larger than the sum of its proper divisors (39913).

353431 is a wasteful number, since it uses less digits than its factorization.

353431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921.

The product of its digits is 540, while the sum is 19.

The square root of 353431 is about 594.5006307818. The cubic root of 353431 is about 70.7025178041.

Adding to 353431 its reverse (134353), we get a palindrome (487784).

It can be divided in two parts, 35343 and 1, that added together give a square (35344 = 1882).

The spelling of 353431 in words is "three hundred fifty-three thousand, four hundred thirty-one".

Divisors: 1 13 31 403 877 11401 27187 353431