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204420060 = 223251387359
BaseRepresentation
bin11000010111100…
…11001111011100
3112020122121121100
430023303033130
5404312420220
632141233100
75031353565
oct1413631734
9466577540
10204420060
11a54318a9
1258562790
1333474120
141d21316c
1512e2dd90
hexc2f33dc

204420060 has 72 divisors (see below), whose sum is σ = 667779840. Its totient is φ = 50318208.

The previous prime is 204420049. The next prime is 204420071. The reversal of 204420060 is 60024402.

It is an interprime number because it is at equal distance from previous prime (204420049) and next prime (204420071).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41340 + ... + 46019.

It is an arithmetic number, because the mean of its divisors is an integer number (9274720).

Almost surely, 2204420060 is an apocalyptic number.

204420060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204420060 is an abundant number, since it is smaller than the sum of its proper divisors (463359780).

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

204420060 is a wasteful number, since it uses less digits than its factorization.

204420060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87387 (or 87382 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 204420060 is about 14297.5543363192. The cubic root of 204420060 is about 589.0803060870.

Adding to 204420060 its reverse (60024402), we get a palindrome (264444462).

The spelling of 204420060 in words is "two hundred four million, four hundred twenty thousand, sixty".

Divisors: 1 2 3 4 5 6 9 10 12 13 15 18 20 26 30 36 39 45 52 60 65 78 90 117 130 156 180 195 234 260 390 468 585 780 1170 2340 87359 174718 262077 349436 436795 524154 786231 873590 1048308 1135667 1310385 1572462 1747180 2271334 2620770 3144924 3407001 3931155 4542668 5241540 5678335 6814002 7862310 10221003 11356670 13628004 15724620 17035005 20442006 22713340 34070010 40884012 51105015 68140020 102210030 204420060