Search a number
-
+
18941364824900 = 2252733478084581
BaseRepresentation
bin1000100111010001000010…
…10100100110101101000100
32111001202222021121120012212
410103220201110212231010
54440313403343344100
6104141313132202552
73663316451346320
oct423504124465504
974052867546185
1018941364824900
116042a95709251
12215ab68909458
13a7521727211b
14496aa4718980
1522ca95b14635
hex113a21526b44

18941364824900 has 72 divisors (see below), whose sum is σ = 46988625410496. Its totient is φ = 6492241123200.

The previous prime is 18941364824873. The next prime is 18941364824903. The reversal of 18941364824900 is 942846314981.

It is a self number, because there is not a number n which added to its sum of digits gives 18941364824900.

It is not an unprimeable number, because it can be changed into a prime (18941364824903) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1699391 + ... + 6385190.

It is an arithmetic number, because the mean of its divisors is an integer number (652619797368).

Almost surely, 218941364824900 is an apocalyptic number.

18941364824900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18941364824900 is an abundant number, since it is smaller than the sum of its proper divisors (28047260585596).

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

18941364824900 is a wasteful number, since it uses less digits than its factorization.

18941364824900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8087949 (or 8087942 counting only the distinct ones).

The product of its (nonzero) digits is 11943936, while the sum is 59.

The spelling of 18941364824900 in words is "eighteen trillion, nine hundred forty-one billion, three hundred sixty-four million, eight hundred twenty-four thousand, nine hundred".

Divisors: 1 2 4 5 7 10 14 20 25 28 35 50 70 100 140 175 350 700 3347 6694 13388 16735 23429 33470 46858 66940 83675 93716 117145 167350 234290 334700 468580 585725 1171450 2342900 8084581 16169162 32338324 40422905 56592067 80845810 113184134 161691620 202114525 226368268 282960335 404229050 565920670 808458100 1131841340 1414801675 2829603350 5659206700 27059092607 54118185214 108236370428 135295463035 189413648249 270590926070 378827296498 541181852140 676477315175 757654592996 947068241245 1352954630350 1894136482490 2705909260700 3788272964980 4735341206225 9470682412450 18941364824900