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1493972210220 = 223572619820927
BaseRepresentation
bin10101101111010111101…
…011101101001000101100
312021211012111021200122020
4111233113223231020230
5143434123341211340
63102153225150140
7212636011155300
oct25572753551054
95254174250566
101493972210220
11526654401746
1220166032b350
13aab5b66a8a9
1452446ca5d00
1528cdd0c29d0
hex15bd7aed22c

1493972210220 has 144 divisors (see below), whose sum is σ = 4873948047360. Its totient is φ = 340927284096.

The previous prime is 1493972210167. The next prime is 1493972210281. The reversal of 1493972210220 is 220122793941.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1409397 + ... + 2230323.

It is an arithmetic number, because the mean of its divisors is an integer number (33846861440).

Almost surely, 21493972210220 is an apocalyptic number.

1493972210220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1493972210220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2436974023680).

1493972210220 is an abundant number, since it is smaller than the sum of its proper divisors (3379975837140).

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

1493972210220 is a wasteful number, since it uses less digits than its factorization.

1493972210220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821572 (or 821563 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 42.

The spelling of 1493972210220 in words is "one trillion, four hundred ninety-three billion, nine hundred seventy-two million, two hundred ten thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 49 60 70 84 98 105 140 147 196 210 245 294 420 490 588 619 735 980 1238 1470 1857 2476 2940 3095 3714 4333 6190 7428 8666 9285 12380 12999 17332 18570 21665 25998 30331 37140 43330 51996 60662 64995 86660 90993 121324 129990 151655 181986 259980 303310 363972 454965 606620 820927 909930 1641854 1819860 2462781 3283708 4104635 4925562 5746489 8209270 9851124 11492978 12313905 16418540 17239467 22985956 24627810 28732445 34478934 40225423 49255620 57464890 68957868 80450846 86197335 114929780 120676269 160901692 172394670 201127115 241352538 344789340 402254230 482705076 508153813 603381345 804508460 1016307626 1206762690 1524461439 2032615252 2413525380 2540769065 3048922878 3557076691 5081538130 6097845756 7114153382 7622307195 10163076260 10671230073 14228306764 15244614390 17785383455 21342460146 24899536837 30489228780 35570766910 42684920292 49799073674 53356150365 71141533820 74698610511 99598147348 106712300730 124497684185 149397221022 213424601460 248995368370 298794442044 373493052555 497990736740 746986105110 1493972210220