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38982020 = 225711171489
BaseRepresentation
bin1001010010110…
…1000110000100
32201100111021112
42110231012010
534434411040
63511304152
7652225130
oct224550604
981314245
1038982020
1120005850
121107b058
1380cb3ac
14526a3c0
153650365
hex252d184

38982020 has 96 divisors (see below), whose sum is σ = 108138240. Its totient is φ = 11427840.

The previous prime is 38982019. The next prime is 38982043. The reversal of 38982020 is 2028983.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25436 + ... + 26924.

It is an arithmetic number, because the mean of its divisors is an integer number (1126440).

Almost surely, 238982020 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 38982020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54069120).

38982020 is an abundant number, since it is smaller than the sum of its proper divisors (69156220).

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

38982020 is a wasteful number, since it uses less digits than its factorization.

38982020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1533 (or 1531 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 38982020 is about 6243.5582803398. The cubic root of 38982020 is about 339.0690217763.

The spelling of 38982020 in words is "thirty-eight million, nine hundred eighty-two thousand, twenty".

Divisors: 1 2 4 5 7 10 11 14 17 20 22 28 34 35 44 55 68 70 77 85 110 119 140 154 170 187 220 238 308 340 374 385 476 595 748 770 935 1190 1309 1489 1540 1870 2380 2618 2978 3740 5236 5956 6545 7445 10423 13090 14890 16379 20846 25313 26180 29780 32758 41692 50626 52115 65516 81895 101252 104230 114653 126565 163790 177191 208460 229306 253130 278443 327580 354382 458612 506260 556886 573265 708764 885955 1113772 1146530 1392215 1771910 1949101 2293060 2784430 3543820 3898202 5568860 7796404 9745505 19491010 38982020