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38509050 = 23521491723
BaseRepresentation
bin1001001011100…
…1100111111010
32200110110111010
42102321213322
534324242200
63453214350
7645215166
oct222714772
980413433
1038509050
111a812468
1210a913b6
137c94028
145185ca6
1535aa150
hex24b99fa

38509050 has 48 divisors (see below), whose sum is σ = 96199200. Its totient is φ = 10194240.

The previous prime is 38509049. The next prime is 38509073. The reversal of 38509050 is 5090583.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 38508999 and 38509017.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21489 + ... + 23211.

It is an arithmetic number, because the mean of its divisors is an integer number (2004150).

Almost surely, 238509050 is an apocalyptic number.

38509050 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 38509050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48099600).

38509050 is an abundant number, since it is smaller than the sum of its proper divisors (57690150).

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

38509050 is a wasteful number, since it uses less digits than its factorization.

38509050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1887 (or 1882 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 38509050 is about 6205.5660499265. The cubic root of 38509050 is about 337.6921265482.

The spelling of 38509050 in words is "thirty-eight million, five hundred nine thousand, fifty".

Divisors: 1 2 3 5 6 10 15 25 30 50 75 149 150 298 447 745 894 1490 1723 2235 3446 3725 4470 5169 7450 8615 10338 11175 17230 22350 25845 43075 51690 86150 129225 256727 258450 513454 770181 1283635 1540362 2567270 3850905 6418175 7701810 12836350 19254525 38509050