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538150020 = 223540122367
BaseRepresentation
bin100000000100111…
…000010010000100
31101111121212001020
4200010320102010
52100231300040
6125222231140
716223125332
oct4004702204
91344555036
10538150020
11256854091
121302854b0
1387651885
1451686b52
15323a1cd0
hex20138484

538150020 has 48 divisors (see below), whose sum is σ = 1510645248. Its totient is φ = 143142400.

The previous prime is 538150009. The next prime is 538150027. The reversal of 538150020 is 20051835.

It is not an unprimeable number, because it can be changed into a prime (538150027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12877 + ... + 35243.

It is an arithmetic number, because the mean of its divisors is an integer number (31471776).

Almost surely, 2538150020 is an apocalyptic number.

It is an amenable number.

538150020 is an abundant number, since it is smaller than the sum of its proper divisors (972495228).

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

538150020 is a wasteful number, since it uses less digits than its factorization.

538150020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22780 (or 22778 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 538150020 is about 23198.0606948081. The cubic root of 538150020 is about 813.3942916926.

The spelling of 538150020 in words is "five hundred thirty-eight million, one hundred fifty thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 401 802 1203 1604 2005 2406 4010 4812 6015 8020 12030 22367 24060 44734 67101 89468 111835 134202 223670 268404 335505 447340 671010 1342020 8969167 17938334 26907501 35876668 44845835 53815002 89691670 107630004 134537505 179383340 269075010 538150020