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341531431 = 2713125887
BaseRepresentation
bin10100010110110…
…101101100100111
3212210122121001021
4110112311230213
51144413001211
653520112011
711314653313
oct2426655447
9783577037
10341531431
1116587068a
1296465607
13559ac707
1433504b43
151eeb4771
hex145b5b27

341531431 has 4 divisors (see below), whose sum is σ = 341660032. Its totient is φ = 341402832.

The previous prime is 341531381. The next prime is 341531447. The reversal of 341531431 is 134135143.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134135143 = 592273477.

It is a cyclic number.

It is not a de Polignac number, because 341531431 - 29 = 341530919 is a prime.

It is a super-2 number, since 2×3415314312 = 233287436721815522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 341531396 and 341531405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (341531461) 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, 60231 + ... + 65656.

It is an arithmetic number, because the mean of its divisors is an integer number (85415008).

Almost surely, 2341531431 is an apocalyptic number.

341531431 is a deficient number, since it is larger than the sum of its proper divisors (128601).

341531431 is a wasteful number, since it uses less digits than its factorization.

341531431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128600.

The product of its digits is 2160, while the sum is 25.

The square root of 341531431 is about 18480.5690118026. The cubic root of 341531431 is about 698.9995442768. Note that the first 3 decimals are identical.

Adding to 341531431 its reverse (134135143), we get a palindrome (475666574).

The spelling of 341531431 in words is "three hundred forty-one million, five hundred thirty-one thousand, four hundred thirty-one".

Divisors: 1 2713 125887 341531431