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52785226090 = 25232910773961
BaseRepresentation
bin110001001010001111…
…101010000101101010
312001020200201022112201
4301022033222011222
51331101004213330
640125454330414
73546032006302
oct611217520552
9161220638481
1052785226090
112042797a6a3
12a2917b9a0a
134c92ac64bc
1427aa5ca602
15158e161eca
hexc4a3ea16a

52785226090 has 64 divisors (see below), whose sum is σ = 103523132160. Its totient is φ = 19317168640.

The previous prime is 52785226063. The next prime is 52785226093. The reversal of 52785226090 is 9062258725.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a self number, because there is not a number n which added to its sum of digits gives 52785226090.

It is not an unprimeable number, because it can be changed into a prime (52785226093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 676710 + ... + 750670.

It is an arithmetic number, because the mean of its divisors is an integer number (1617548940).

Almost surely, 252785226090 is an apocalyptic number.

52785226090 is a deficient number, since it is larger than the sum of its proper divisors (50737906070).

52785226090 is a wasteful number, since it uses less digits than its factorization.

52785226090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74127.

The product of its (nonzero) digits is 604800, while the sum is 46.

The spelling of 52785226090 in words is "fifty-two billion, seven hundred eighty-five million, two hundred twenty-six thousand, ninety".

Divisors: 1 2 5 10 23 29 46 58 107 115 145 214 230 290 535 667 1070 1334 2461 3103 3335 4922 6206 6670 12305 15515 24610 31030 71369 73961 142738 147922 356845 369805 713690 739610 1701103 2144869 3402206 4289738 7913827 8505515 10724345 15827654 17011030 21448690 39569135 49331987 79138270 98663974 182018021 229500983 246659935 364036042 459001966 493319870 910090105 1147504915 1820180210 2295009830 5278522609 10557045218 26392613045 52785226090