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20324648195880 = 23357107112258987
BaseRepresentation
bin1001001111100001100110…
…11011111001011100101000
32122222000110200022121200120
410213300303123321130220
510130444334414232010
6111121003043403240
74165256505115530
oct447606333713450
978860420277616
1020324648195880
1165266a9053756
122343077683520
13b457b57b0722
14503a0ab2a4c0
15253a563c3e70
hex127c336f9728

20324648195880 has 128 divisors (see below), whose sum is σ = 69691044833280. Its totient is φ = 4645198091520.

The previous prime is 20324648195879. The next prime is 20324648195909. The reversal of 20324648195880 is 8859184642302.

It is a Harshad number since it is a multiple of its sum of digits (60).

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, 7867747 + ... + 10126733.

It is an arithmetic number, because the mean of its divisors is an integer number (544461287760).

Almost surely, 220324648195880 is an apocalyptic number.

20324648195880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20324648195880 is an abundant number, since it is smaller than the sum of its proper divisors (49366396637400).

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

20324648195880 is a wasteful number, since it uses less digits than its factorization.

20324648195880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2269719 (or 2269715 counting only the distinct ones).

The product of its (nonzero) digits is 26542080, while the sum is 60.

The spelling of 20324648195880 in words is "twenty trillion, three hundred twenty-four billion, six hundred forty-eight million, one hundred ninety-five thousand, eight hundred eighty".

Divisors: 1 2 3 4 5 6 7 8 10 12 14 15 20 21 24 28 30 35 40 42 56 60 70 84 105 120 140 168 210 280 420 840 10711 21422 32133 42844 53555 64266 74977 85688 107110 128532 149954 160665 214220 224931 257064 299908 321330 374885 428440 449862 599816 642660 749770 899724 1124655 1285320 1499540 1799448 2249310 2258987 2999080 4498620 4517974 6776961 8997240 9035948 11294935 13553922 15812909 18071896 22589870 27107844 31625818 33884805 45179740 47438727 54215688 63251636 67769610 79064545 90359480 94877454 126503272 135539220 158129090 189754908 237193635 271078440 316258180 379509816 474387270 632516360 948774540 1897549080 24196009757 48392019514 72588029271 96784039028 120980048785 145176058542 169372068299 193568078056 241960097570 290352117084 338744136598 362940146355 483920195140 508116204897 580704234168 677488273196 725880292710 846860341495 967840390280 1016232409794 1354976546392 1451760585420 1693720682990 2032464819588 2540581024485 2903521170840 3387441365980 4064929639176 5081162048970 6774882731960 10162324097940 20324648195880