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38538080 = 2557191811
BaseRepresentation
bin1001001100000…
…0101101100000
32200111221022022
42103000231200
534331204310
63454001012
7645365630
oct223005540
980457268
1038538080
111a832259
1210aa6168
137ca42c9
1451926c0
1535b3a55
hex24c0b60

38538080 has 96 divisors (see below), whose sum is σ = 109589760. Its totient is φ = 12510720.

The previous prime is 38538079. The next prime is 38538121. The reversal of 38538080 is 8083583.

It is a super-2 number, since 2×385380802 = 2970367220172800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 38538080.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20375 + ... + 22185.

It is an arithmetic number, because the mean of its divisors is an integer number (1141560).

Almost surely, 238538080 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38538080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54794880).

38538080 is an abundant number, since it is smaller than the sum of its proper divisors (71051680).

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

38538080 is a wasteful number, since it uses less digits than its factorization.

38538080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1852 (or 1844 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 38538080 is about 6207.9046384428. The cubic root of 38538080 is about 337.7769614990.

The spelling of 38538080 in words is "thirty-eight million, five hundred thirty-eight thousand, eighty".

Divisors: 1 2 4 5 7 8 10 14 16 19 20 28 32 35 38 40 56 70 76 80 95 112 133 140 152 160 190 224 266 280 304 380 532 560 608 665 760 1064 1120 1330 1520 1811 2128 2660 3040 3622 4256 5320 7244 9055 10640 12677 14488 18110 21280 25354 28976 34409 36220 50708 57952 63385 68818 72440 101416 126770 137636 144880 172045 202832 240863 253540 275272 289760 344090 405664 481726 507080 550544 688180 963452 1014160 1101088 1204315 1376360 1926904 2028320 2408630 2752720 3853808 4817260 5505440 7707616 9634520 19269040 38538080