Search a number
-
+
238126190 = 2531271349
BaseRepresentation
bin11100011000110…
…00010001101110
3121121002001201112
432030120101232
5441430014230
635343512022
75621016311
oct1614302156
9547061645
10238126190
11112463805
12678b8612
133a445c93
14238a8978
1515d8ad95
hexe31846e

238126190 has 48 divisors (see below), whose sum is σ = 450424800. Its totient is φ = 90619200.

The previous prime is 238126171. The next prime is 238126247. The reversal of 238126190 is 91621832.

It is a super-2 number, since 2×2381261902 = 113408164727832200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 682136 + ... + 682484.

It is an arithmetic number, because the mean of its divisors is an integer number (9383850).

Almost surely, 2238126190 is an apocalyptic number.

238126190 is a deficient number, since it is larger than the sum of its proper divisors (212298610).

238126190 is a wasteful number, since it uses less digits than its factorization.

238126190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489 (or 458 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 238126190 is about 15431.3379199601. The cubic root of 238126190 is about 619.8249505816.

The spelling of 238126190 in words is "two hundred thirty-eight million, one hundred twenty-six thousand, one hundred ninety".

Divisors: 1 2 5 10 31 62 71 142 155 310 349 355 698 710 961 1745 1922 2201 3490 4402 4805 9610 10819 11005 21638 22010 24779 49558 54095 68231 108190 123895 136462 247790 335389 341155 670778 682310 768149 1536298 1676945 3353890 3840745 7681490 23812619 47625238 119063095 238126190