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187672113471220 = 22571971993710227
BaseRepresentation
bin101010101010111111010001…
…101010000101111011110100
3220121111021112021012111010121
4222222333101222011323310
5144044304442022034340
61503051213445101324
754346601631632350
oct5252772152057364
9817437467174117
10187672113471220
11548863294a8454
12190701430b7844
138094534501cc1
14344b543450460
1516a6bb06ae94a
hexaaafd1a85ef4

187672113471220 has 96 divisors (see below), whose sum is σ = 480796756715520. Its totient is φ = 60099594468480.

The previous prime is 187672113471203. The next prime is 187672113471371. The reversal of 187672113471220 is 22174311276781.

It is a congruent 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, 496666254 + ... + 497043973.

It is an arithmetic number, because the mean of its divisors is an integer number (5008299549120).

Almost surely, 2187672113471220 is an apocalyptic number.

187672113471220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

187672113471220 is an abundant number, since it is smaller than the sum of its proper divisors (293124643244300).

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

187672113471220 is a wasteful number, since it uses less digits than its factorization.

187672113471220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 993710333 (or 993710331 counting only the distinct ones).

The product of its (nonzero) digits is 1580544, while the sum is 52.

The spelling of 187672113471220 in words is "one hundred eighty-seven trillion, six hundred seventy-two billion, one hundred thirteen million, four hundred seventy-one thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 19 20 28 35 38 70 71 76 95 133 140 142 190 266 284 355 380 497 532 665 710 994 1330 1349 1420 1988 2485 2660 2698 4970 5396 6745 9443 9940 13490 18886 26980 37772 47215 94430 188860 993710227 1987420454 3974840908 4968551135 6955971589 9937102270 13911943178 18880494313 19874204540 27823886356 34779857945 37760988626 69559715890 70553426117 75521977252 94402471565 132163460191 139119431780 141106852234 188804943130 264326920382 282213704468 352767130585 377609886260 493873982819 528653840764 660817300955 705534261170 987747965638 1321634601910 1340515096223 1411068522340 1975495931276 2469369914095 2643269203820 2681030192446 4938739828190 5362060384892 6702575481115 9383605673561 9877479656380 13405150962230 18767211347122 26810301924460 37534422694244 46918028367805 93836056735610 187672113471220