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11605560020 = 2251039415987
BaseRepresentation
bin10101100111011111…
…01100101011010100
31002221210220112102022
422303233230223110
5142232010410040
65155335232312
7560411426645
oct126357545324
932853815368
1011605560020
114a1604401a
1222ba818698
13112c51bba2
147c14a36cc
1547dd096b5
hex2b3becad4

11605560020 has 48 divisors (see below), whose sum is σ = 24638560128. Its totient is φ = 4591501440.

The previous prime is 11605560011. The next prime is 11605560037. The reversal of 11605560020 is 2006550611.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1935467 + ... + 1941453.

It is an arithmetic number, because the mean of its divisors is an integer number (513303336).

Almost surely, 211605560020 is an apocalyptic number.

11605560020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11605560020 is an abundant number, since it is smaller than the sum of its proper divisors (13033000108).

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

11605560020 is a wasteful number, since it uses less digits than its factorization.

11605560020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7040 (or 7038 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

The spelling of 11605560020 in words is "eleven billion, six hundred five million, five hundred sixty thousand, twenty".

Divisors: 1 2 4 5 10 20 103 206 412 515 941 1030 1882 2060 3764 4705 5987 9410 11974 18820 23948 29935 59870 96923 119740 193846 387692 484615 616661 969230 1233322 1938460 2466644 3083305 5633767 6166610 11267534 12333220 22535068 28168835 56337670 112675340 580278001 1160556002 2321112004 2901390005 5802780010 11605560020