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21048284892360 = 23351115945670373
BaseRepresentation
bin1001100100100101011111…
…00010110100110011001000
32202112012022011102121101110
410302102233202310303020
510224323341413023420
6112433240521250320
74301455056416565
oct462225742646310
982465264377343
1021048284892360
116785589104250
12243b3700339a0
13b98ac9bb33ab
1452aa572d986c
152677aa606ee0
hex1324af8b4cc8

21048284892360 has 64 divisors (see below), whose sum is σ = 68885296015680. Its totient is φ = 5102614519040.

The previous prime is 21048284892329. The next prime is 21048284892377. The reversal of 21048284892360 is 6329848284012.

It is a self number, because there is not a number n which added to its sum of digits gives 21048284892360.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7972833867 + ... + 7972836506.

It is an arithmetic number, because the mean of its divisors is an integer number (1076332750245).

Almost surely, 221048284892360 is an apocalyptic number.

21048284892360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21048284892360 is an abundant number, since it is smaller than the sum of its proper divisors (47837011123320).

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

21048284892360 is a wasteful number, since it uses less digits than its factorization.

21048284892360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15945670398 (or 15945670394 counting only the distinct ones).

The product of its (nonzero) digits is 10616832, while the sum is 57.

The spelling of 21048284892360 in words is "twenty-one trillion, forty-eight billion, two hundred eighty-four million, eight hundred ninety-two thousand, three hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 11 12 15 20 22 24 30 33 40 44 55 60 66 88 110 120 132 165 220 264 330 440 660 1320 15945670373 31891340746 47837011119 63782681492 79728351865 95674022238 127565362984 159456703730 175402374103 191348044476 239185055595 318913407460 350804748206 382696088952 478370111190 526207122309 637826814920 701609496412 877011870515 956740222380 1052414244618 1403218992824 1754023741030 1913480444760 2104828489236 2631035611545 3508047482060 4209656978472 5262071223090 7016094964120 10524142446180 21048284892360