Search a number
-
+
348055649 = 1039334991
BaseRepresentation
bin10100101111101…
…110100001100001
3220020221001120222
4110233232201201
51203100240044
654312012425
711424265334
oct2457564141
9806831528
10348055649
111695173a7
1298691115
13571551b6
143432261b
15208528ee
hex14bee861

348055649 has 4 divisors (see below), whose sum is σ = 348391680. Its totient is φ = 347719620.

The previous prime is 348055607. The next prime is 348055663. The reversal of 348055649 is 946550843.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 946550843 = 7135221549.

It is a cyclic number.

It is not a de Polignac number, because 348055649 - 212 = 348051553 is a prime.

It is a super-2 number, since 2×3480556492 = 242285469601622402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (348055679) 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, 166457 + ... + 168534.

It is an arithmetic number, because the mean of its divisors is an integer number (87097920).

Almost surely, 2348055649 is an apocalyptic number.

It is an amenable number.

348055649 is a deficient number, since it is larger than the sum of its proper divisors (336031).

348055649 is a wasteful number, since it uses less digits than its factorization.

348055649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336030.

The product of its (nonzero) digits is 518400, while the sum is 44.

The square root of 348055649 is about 18656.2495963149. The cubic root of 348055649 is about 703.4224565803.

The spelling of 348055649 in words is "three hundred forty-eight million, fifty-five thousand, six hundred forty-nine".

Divisors: 1 1039 334991 348055649