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20100060 = 22325111667
BaseRepresentation
bin100110010101…
…1001111011100
31101211012002200
41030223033130
520121200220
61554451500
7332563521
oct114531734
941735080
1020100060
1110389522
126893b90
134219b36
142953148
151b70890
hex132b3dc

20100060 has 36 divisors (see below), whose sum is σ = 60970728. Its totient is φ = 5359968.

The previous prime is 20100053. The next prime is 20100079. The reversal of 20100060 is 6000102.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55654 + ... + 56013.

Almost surely, 220100060 is an apocalyptic number.

20100060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20100060 is an abundant number, since it is smaller than the sum of its proper divisors (40870668).

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

20100060 is a wasteful number, since it uses less digits than its factorization.

20100060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111682 (or 111677 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 20100060 is about 4483.3090457830. The cubic root of 20100060 is about 271.8936832186.

Adding to 20100060 its reverse (6000102), we get a palindrome (26100162).

The spelling of 20100060 in words is "twenty million, one hundred thousand, sixty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 111667 223334 335001 446668 558335 670002 1005003 1116670 1340004 1675005 2010006 2233340 3350010 4020012 5025015 6700020 10050030 20100060