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20470896289530 = 23252344507222197
BaseRepresentation
bin1001010011110010000001…
…00000000110011011111010
32200110222221221220112121200
410221321000200012123322
510140343343422231110
6111312111103515030
74211654615315361
oct451710040063372
980428857815550
1020470896289530
11658272730a055
1223674918b8a76
13b5652196424b
1450ab220a87d8
152577658d76c0
hex129e408066fa

20470896289530 has 96 divisors (see below), whose sum is σ = 55539929487744. Its totient is φ = 5221421132928.

The previous prime is 20470896289517. The next prime is 20470896289531. The reversal of 20470896289530 is 3598269807402.

20470896289530 is a `hidden beast` number, since 2 + 0 + 4 + 7 + 0 + 8 + 96 + 2 + 8 + 9 + 530 = 666.

It is not an unprimeable number, because it can be changed into a prime (20470896289531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 92018392 + ... + 92240588.

It is an arithmetic number, because the mean of its divisors is an integer number (578540932164).

Almost surely, 220470896289530 is an apocalyptic number.

20470896289530 is an abundant number, since it is smaller than the sum of its proper divisors (35069033198214).

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

20470896289530 is a wasteful number, since it uses less digits than its factorization.

20470896289530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266740 (or 266737 counting only the distinct ones).

The product of its (nonzero) digits is 52254720, while the sum is 63.

The spelling of 20470896289530 in words is "twenty trillion, four hundred seventy billion, eight hundred ninety-six million, two hundred eighty-nine thousand, five hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 23 30 45 46 69 90 115 138 207 230 345 414 690 1035 2070 44507 89014 133521 222197 222535 267042 400563 444394 445070 666591 667605 801126 1023661 1110985 1333182 1335210 1999773 2002815 2047322 2221970 3070983 3332955 3999546 4005630 5110531 5118305 6141966 6665910 9212949 9998865 10221062 10236610 15331593 15354915 18425898 19997730 25552655 30663186 30709830 45994779 46064745 51105310 76657965 91989558 92129490 153315930 229973895 459947790 9889321879 19778643758 29667965637 49446609395 59335931274 89003896911 98893218790 148339828185 178007793822 227454403217 296679656370 445019484555 454908806434 682363209651 890038969110 1137272016085 1364726419302 2047089628953 2274544032170 3411816048255 4094179257906 6823632096510 10235448144765 20470896289530