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348402980 = 22517420149
BaseRepresentation
bin10100110001000…
…011010100100100
3220021120201001002
4110301003110210
51203142343410
654323252432
711430243062
oct2461032444
9807521032
10348402980
11169734352
129881a118
1357247313
14343b3032
15208c07a5
hex14c43524

348402980 has 12 divisors (see below), whose sum is σ = 731646300. Its totient is φ = 139361184.

The previous prime is 348402949. The next prime is 348402983. The reversal of 348402980 is 89204843.

It can be written as a sum of positive squares in 2 ways, for example, as 60964864 + 287438116 = 7808^2 + 16954^2 .

It is not an unprimeable number, because it can be changed into a prime (348402983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8710055 + ... + 8710094.

It is an arithmetic number, because the mean of its divisors is an integer number (60970525).

Almost surely, 2348402980 is an apocalyptic number.

It is an amenable number.

348402980 is an abundant number, since it is smaller than the sum of its proper divisors (383243320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

348402980 is a wasteful number, since it uses less digits than its factorization.

348402980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17420158 (or 17420156 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 348402980 is about 18665.5559788612. Note that the first 3 decimals coincide. The cubic root of 348402980 is about 703.6563647694.

The spelling of 348402980 in words is "three hundred forty-eight million, four hundred two thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 17420149 34840298 69680596 87100745 174201490 348402980