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38481954 = 237219832
BaseRepresentation
bin1001001011001…
…1000000100010
32200102002022120
42102303000202
534322410304
63452445110
7645043200
oct222630042
980362276
1038481954
111a7a4075
1210a79796
137c848b4
14517a070
1535a20d9
hex24b3022

38481954 has 72 divisors (see below), whose sum is σ = 95390640. Its totient is φ = 10290672.

The previous prime is 38481941. The next prime is 38482019. The reversal of 38481954 is 45918483.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 463597 + ... + 463679.

It is an arithmetic number, because the mean of its divisors is an integer number (1324870).

Almost surely, 238481954 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38481954, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47695320).

38481954 is an abundant number, since it is smaller than the sum of its proper divisors (56908686).

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

38481954 is a wasteful number, since it uses less digits than its factorization.

38481954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204 (or 114 counting only the distinct ones).

The product of its digits is 138240, while the sum is 42.

The square root of 38481954 is about 6203.3824644302. The cubic root of 38481954 is about 337.6129048866.

Subtracting 38481954 from its reverse (45918483), we obtain a square (7436529 = 27272).

The spelling of 38481954 in words is "thirty-eight million, four hundred eighty-one thousand, nine hundred fifty-four".

Divisors: 1 2 3 6 7 14 19 21 38 42 49 57 83 98 114 133 147 166 249 266 294 399 498 581 798 931 1162 1577 1743 1862 2793 3154 3486 4067 4731 5586 6889 8134 9462 11039 12201 13778 20667 22078 24402 33117 41334 48223 66234 77273 96446 130891 144669 154546 231819 261782 289338 337561 392673 463638 675122 785346 916237 1012683 1832474 2025366 2748711 5497422 6413659 12827318 19240977 38481954