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38825912290 = 251159139193223
BaseRepresentation
bin100100001010001101…
…000110011111100010
310201012211210200221111
4210022031012133202
51114003413143130
625500354013534
72543066544364
oct441215063742
9121184720844
1038825912290
1115514240620
1276368772aa
133879a615c9
141c446a4d34
1510238b902a
hex90a3467e2

38825912290 has 128 divisors (see below), whose sum is σ = 78846566400. Its totient is φ = 13646499840.

The previous prime is 38825912261. The next prime is 38825912341. The reversal of 38825912290 is 9221952883.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 174107119 + ... + 174107341.

It is an arithmetic number, because the mean of its divisors is an integer number (615988800).

Almost surely, 238825912290 is an apocalyptic number.

38825912290 is an abundant number, since it is smaller than the sum of its proper divisors (40020654110).

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

38825912290 is a wasteful number, since it uses less digits than its factorization.

38825912290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632.

The product of its (nonzero) digits is 622080, while the sum is 49.

The spelling of 38825912290 in words is "thirty-eight billion, eight hundred twenty-five million, nine hundred twelve thousand, two hundred ninety".

Divisors: 1 2 5 10 11 22 55 59 110 118 139 193 223 278 295 386 446 590 649 695 965 1115 1298 1390 1529 1930 2123 2230 2453 3058 3245 4246 4906 6490 7645 8201 10615 11387 12265 13157 15290 16402 21230 22774 24530 26314 26827 30997 41005 43039 53654 56935 61994 65785 82010 86078 90211 113870 125257 131570 134135 144727 154985 180422 215195 250514 268270 289454 295097 309970 340967 430390 451055 473429 590194 626285 681934 723635 902110 946858 1252570 1447270 1475485 1582793 1704835 1828823 2367145 2539301 2950970 3165586 3409670 3657646 4734290 5078602 5982421 7913965 9144115 11964842 12696505 15827930 17410723 18288230 20117053 25393010 27932311 29912105 34821446 40234106 55864622 59824210 65806631 87053615 100585265 131613262 139661555 174107230 201170530 279323110 329033155 352962839 658066310 705925678 1764814195 3529628390 3882591229 7765182458 19412956145 38825912290