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20364527420 = 2251517618861
BaseRepresentation
bin10010111101110100…
…100000011100111100
31221120020110011212022
4102331310200130330
5313201304334140
613204430255312
71320436425026
oct227564403474
957506404768
1020364527420
118700276956
123b44057538
131bc7079333
14db2895016
157e2c740b5
hex4bdd2073c

20364527420 has 48 divisors (see below), whose sum is σ = 43110156096. Its totient is φ = 8080320000.

The previous prime is 20364527419. The next prime is 20364527459. The reversal of 20364527420 is 2472546302.

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, 2293790 + ... + 2302650.

It is an arithmetic number, because the mean of its divisors is an integer number (898128252).

Almost surely, 220364527420 is an apocalyptic number.

20364527420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20364527420 is an abundant number, since it is smaller than the sum of its proper divisors (22745628676).

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

20364527420 is a wasteful number, since it uses less digits than its factorization.

20364527420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9782 (or 9780 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 35.

The spelling of 20364527420 in words is "twenty billion, three hundred sixty-four million, five hundred twenty-seven thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 151 302 604 755 761 1510 1522 3020 3044 3805 7610 8861 15220 17722 35444 44305 88610 114911 177220 229822 459644 574555 1149110 1338011 2298220 2676022 5352044 6690055 6743221 13380110 13486442 26760220 26972884 33716105 67432210 134864420 1018226371 2036452742 4072905484 5091131855 10182263710 20364527420