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348354889 = 379414997
BaseRepresentation
bin10100110000110…
…111100101001001
3220021111021001221
4110300313211021
51203134324024
654322242041
711426652631
oct2460674511
9807437057
10348354889
11169701203
12987b6321
135722b46c
143439d6c1
15208b13e4
hex14c37949

348354889 has 4 divisors (see below), whose sum is σ = 357769924. Its totient is φ = 338939856.

The previous prime is 348354883. The next prime is 348354899. The reversal of 348354889 is 988453843.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 988453843 = 1376034911.

It can be written as a sum of positive squares in 2 ways, for example, as 333975625 + 14379264 = 18275^2 + 3792^2 .

It is a cyclic number.

It is not a de Polignac number, because 348354889 - 27 = 348354761 is a prime.

It is a super-2 number, since 2×3483548892 = 242702257380404642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (348354883) 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, 4707462 + ... + 4707535.

It is an arithmetic number, because the mean of its divisors is an integer number (89442481).

Almost surely, 2348354889 is an apocalyptic number.

It is an amenable number.

348354889 is a deficient number, since it is larger than the sum of its proper divisors (9415035).

348354889 is an equidigital number, since it uses as much as digits as its factorization.

348354889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9415034.

The product of its digits is 3317760, while the sum is 52.

The square root of 348354889 is about 18664.2677059669. The cubic root of 348354889 is about 703.6239874197.

The spelling of 348354889 in words is "three hundred forty-eight million, three hundred fifty-four thousand, eight hundred eighty-nine".

Divisors: 1 37 9414997 348354889