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348002005 = 51319281783
BaseRepresentation
bin10100101111100…
…001011011010101
3220020211100000011
4110233201123111
51203042031010
654310520221
711423653051
oct2457413325
9806740004
10348002005
1116949006a
1298666071
1357136960
143430ac61
1520841a8a
hex14be16d5

348002005 has 16 divisors (see below), whose sum is σ = 473397120. Its totient is φ = 243459648.

The previous prime is 348001993. The next prime is 348002009. The reversal of 348002005 is 500200843.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-348002005 is a prime.

It is a super-2 number, since 2×3480020052 = 242210790968040050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (348002009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139657 + ... + 142126.

It is an arithmetic number, because the mean of its divisors is an integer number (29587320).

Almost surely, 2348002005 is an apocalyptic number.

It is an amenable number.

348002005 is a deficient number, since it is larger than the sum of its proper divisors (125395115).

348002005 is a wasteful number, since it uses less digits than its factorization.

348002005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281820.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 348002005 is about 18654.8118457410. The cubic root of 348002005 is about 703.3863164467.

Adding to 348002005 its reverse (500200843), we get a palindrome (848202848).

The spelling of 348002005 in words is "three hundred forty-eight million, two thousand, five".

Divisors: 1 5 13 19 65 95 247 1235 281783 1408915 3663179 5353877 18315895 26769385 69600401 348002005