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20306302261230 = 2352331379381391
BaseRepresentation
bin1001001110111111011011…
…11011101101011111101110
32122220021010010012120112110
410213133231323231133232
510130144301334324410
6111104330402344450
74164040046210556
oct447375573553756
978807103176473
1020306302261230
116519944273497
12233b5b765b126
13b43b509bb4ab
14502b8a3b0166
15253330986720
hex1277edeed7ee

20306302261230 has 64 divisors (see below), whose sum is σ = 50870260389888. Its totient is φ = 5177926871040.

The previous prime is 20306302261159. The next prime is 20306302261249. The reversal of 20306302261230 is 3216220360302.

It is a super-2 number, since 2×203063022612302 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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, 2526166 + ... + 6855225.

It is an arithmetic number, because the mean of its divisors is an integer number (794847818592).

Almost surely, 220306302261230 is an apocalyptic number.

20306302261230 is an abundant number, since it is smaller than the sum of its proper divisors (30563958128658).

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

20306302261230 is a wasteful number, since it uses less digits than its factorization.

20306302261230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9384561.

The product of its (nonzero) digits is 15552, while the sum is 30.

The spelling of 20306302261230 in words is "twenty trillion, three hundred six billion, three hundred two million, two hundred sixty-one thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 23 30 46 69 115 138 230 345 690 3137 6274 9411 15685 18822 31370 47055 72151 94110 144302 216453 360755 432906 721510 1082265 2164530 9381391 18762782 28144173 46906955 56288346 93813910 140720865 215771993 281441730 431543986 647315979 1078859965 1294631958 2157719930 3236579895 6473159790 29429423567 58858847134 88288270701 147147117835 176576541402 294294235670 441441353505 676876742041 882882707010 1353753484082 2030630226123 3384383710205 4061260452246 6768767420410 10153151130615 20306302261230