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348488690 = 251119166741
BaseRepresentation
bin10100110001011…
…000001111110010
3220021202001121112
4110301120033302
51203203114230
654325153322
711431051004
oct2461301762
9807661545
10348488690
11169792790
129885b842
1357277334
14343d6374
15208dad95
hex14c583f2

348488690 has 32 divisors (see below), whose sum is σ = 720325440. Its totient is φ = 120052800.

The previous prime is 348488677. The next prime is 348488711. The reversal of 348488690 is 96884843.

It is a super-2 number, since 2×3484886902 = 242888734115832200, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81281 + ... + 85460.

It is an arithmetic number, because the mean of its divisors is an integer number (22510170).

Almost surely, 2348488690 is an apocalyptic number.

348488690 is an abundant number, since it is smaller than the sum of its proper divisors (371836750).

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

348488690 is a wasteful number, since it uses less digits than its factorization.

348488690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166778.

The product of its (nonzero) digits is 1327104, while the sum is 50.

The square root of 348488690 is about 18667.8517778560. The cubic root of 348488690 is about 703.7140617904.

The spelling of 348488690 in words is "three hundred forty-eight million, four hundred eighty-eight thousand, six hundred ninety".

Divisors: 1 2 5 10 11 19 22 38 55 95 110 190 209 418 1045 2090 166741 333482 833705 1667410 1834151 3168079 3668302 6336158 9170755 15840395 18341510 31680790 34848869 69697738 174244345 348488690