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338390371 = 11891791931
BaseRepresentation
bin10100001010110…
…110110101100011
3212120202000022201
4110022312311203
51143111442441
653324514031
711246161564
oct2412666543
9776660281
10338390371
11164015770
12953ab917
135514cab7
1432d2816b
151ea93c31
hex142b6d63

338390371 has 16 divisors (see below), whose sum is σ = 375580800. Its totient is φ = 302315200.

The previous prime is 338390369. The next prime is 338390407. The reversal of 338390371 is 173093833.

It is not a de Polignac number, because 338390371 - 21 = 338390369 is a prime.

It is a super-2 number, since 2×3383903712 = 229016086371035282, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 338390371.

It is not an unprimeable number, because it can be changed into a prime (338390341) 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, 174276 + ... + 176206.

It is an arithmetic number, because the mean of its divisors is an integer number (23473800).

Almost surely, 2338390371 is an apocalyptic number.

338390371 is a deficient number, since it is larger than the sum of its proper divisors (37190429).

338390371 is a wasteful number, since it uses less digits than its factorization.

338390371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2210.

The product of its (nonzero) digits is 40824, while the sum is 37.

The square root of 338390371 is about 18395.3899387863. The cubic root of 338390371 is about 696.8500446224.

The spelling of 338390371 in words is "three hundred thirty-eight million, three hundred ninety thousand, three hundred seventy-one".

Divisors: 1 11 89 179 979 1931 1969 15931 21241 171859 175241 345649 1890449 3802139 30762761 338390371