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238923974822 = 213471493130957
BaseRepresentation
bin1101111010000011111…
…0101000100010100110
3211211201000121110221112
43132200332220202212
512403304014143242
6301432105545022
723155521164111
oct3364076504246
9754630543845
10238923974822
119236639a635
123a37b1a5172
13196b8496440
14b7c77d1578
15633575dc82
hex37a0fa88a6

238923974822 has 32 divisors (see below), whose sum is σ = 394432924032. Its totient is φ = 107853266304.

The previous prime is 238923974819. The next prime is 238923974851. The reversal of 238923974822 is 228479329832.

238923974822 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1758968 + ... + 1889924.

It is an arithmetic number, because the mean of its divisors is an integer number (12326028876).

Almost surely, 2238923974822 is an apocalyptic number.

238923974822 is a deficient number, since it is larger than the sum of its proper divisors (155508949210).

238923974822 is a wasteful number, since it uses less digits than its factorization.

238923974822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132512.

The product of its digits is 20901888, while the sum is 59.

The spelling of 238923974822 in words is "two hundred thirty-eight billion, nine hundred twenty-three million, nine hundred seventy-four thousand, eight hundred twenty-two".

Divisors: 1 2 13 26 47 94 611 1222 1493 2986 19409 38818 70171 130957 140342 261914 912223 1702441 1824446 3404882 6154979 12309958 80014727 160029454 195518801 391037602 2541744413 5083488826 9189383647 18378767294 119461987411 238923974822