Search a number
-
+
338208031 = 7239832137
BaseRepresentation
bin10100001010001…
…010010100011111
3212120101202012101
4110022022110133
51143040124111
653320545531
711244502150
oct2412122437
9776352171
10338208031
11163a00777
12953222a7
13550b7ac5
1432cbb927
151ea59bc1
hex1428a51f

338208031 has 16 divisors (see below), whose sum is σ = 403928064. Its totient is φ = 276876864.

The previous prime is 338208023. The next prime is 338208049. The reversal of 338208031 is 130802833.

It is a cyclic number.

It is not a de Polignac number, because 338208031 - 23 = 338208023 is a prime.

It is a super-2 number, since 2×3382080312 = 228769344465793922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (338208131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157195 + ... + 159331.

It is an arithmetic number, because the mean of its divisors is an integer number (25245504).

Almost surely, 2338208031 is an apocalyptic number.

338208031 is a deficient number, since it is larger than the sum of its proper divisors (65720033).

338208031 is a wasteful number, since it uses less digits than its factorization.

338208031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3150.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 338208031 is about 18390.4331379117. The cubic root of 338208031 is about 696.7248573856.

The spelling of 338208031 in words is "three hundred thirty-eight million, two hundred eight thousand, thirty-one".

Divisors: 1 7 23 161 983 2137 6881 14959 22609 49151 158263 344057 2100671 14704697 48315433 338208031