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20312650650530 = 2571733115393393
BaseRepresentation
bin1001001111001011010000…
…10100111001001110100010
32122220212111112211011111002
410213211220110321032202
510130300302031304110
6111111300342352002
74164353263504310
oct447455024711642
978825445734432
1020312650650530
116521601819317
12234088972b602
13b44622cc8274
145031cd58b0b0
152535a2e8aaa5
hex1279685393a2

20312650650530 has 64 divisors (see below), whose sum is σ = 42162706579968. Its totient is φ = 6901815874560.

The previous prime is 20312650650527. The next prime is 20312650650563. The reversal of 20312650650530 is 3505605621302.

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, 1069514 + ... + 6462906.

It is an arithmetic number, because the mean of its divisors is an integer number (658792290312).

Almost surely, 220312650650530 is an apocalyptic number.

20312650650530 is an abundant number, since it is smaller than the sum of its proper divisors (21850055929438).

20312650650530 is a wasteful number, since it uses less digits than its factorization.

20312650650530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5393891.

The product of its (nonzero) digits is 162000, while the sum is 38.

The spelling of 20312650650530 in words is "twenty trillion, three hundred twelve billion, six hundred fifty million, six hundred fifty thousand, five hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 173 311 346 622 865 1211 1555 1730 2177 2422 3110 4354 6055 10885 12110 21770 53803 107606 269015 376621 538030 753242 1883105 3766210 5393393 10786786 26966965 37753751 53933930 75507502 188768755 377537510 933056989 1677345223 1866113978 3354690446 4665284945 6531398923 8386726115 9330569890 11741416561 13062797846 16773452230 23482833122 32656994615 58707082805 65313989230 117414165610 290180723579 580361447158 1450903617895 2031265065053 2901807235790 4062530130106 10156325325265 20312650650530