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20874331913320 = 2354745672431217
BaseRepresentation
bin1001011111100001011110…
…01000110111110001101000
32201220120022002012200110001
410233300233020313301220
510214001112432211240
6112221311413232344
74253056255454314
oct457605710676150
981816262180401
1020874331913320
116718833199456
1224117036326b4
13b85596cbc072
1452247466cb44
15262ec8c2389a
hex12fc2f237c68

20874331913320 has 64 divisors (see below), whose sum is σ = 47977072519680. Its totient is φ = 8170286140416.

The previous prime is 20874331913317. The next prime is 20874331913353. The reversal of 20874331913320 is 2331913347802.

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, 7370352 + ... + 9801568.

It is an arithmetic number, because the mean of its divisors is an integer number (749641758120).

Almost surely, 220874331913320 is an apocalyptic number.

20874331913320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20874331913320 is an abundant number, since it is smaller than the sum of its proper divisors (27102740606360).

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

20874331913320 is a wasteful number, since it uses less digits than its factorization.

20874331913320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2435842 (or 2435838 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 46.

The spelling of 20874331913320 in words is "twenty trillion, eight hundred seventy-four billion, three hundred thirty-one million, nine hundred thirteen thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 47 94 188 235 376 470 940 1880 4567 9134 18268 22835 36536 45670 91340 182680 214649 429298 858596 1073245 1717192 2146490 2431217 4292980 4862434 8585960 9724868 12156085 19449736 24312170 48624340 97248680 114267199 228534398 457068796 571335995 914137592 1142671990 2285343980 4570687960 11103368039 22206736078 44413472156 55516840195 88826944312 111033680390 222067360780 444134721560 521858297833 1043716595666 2087433191332 2609291489165 4174866382664 5218582978330 10437165956660 20874331913320