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538097860 = 225191416047
BaseRepresentation
bin100000000100101…
…011100011000100
31101111112012111101
4200010223203010
52100223112420
6125221145444
716222520266
oct4004534304
91344465441
10538097860
11256818983
1213025b284
1387633c01
1451671b36
153239160a
hex2012b8c4

538097860 has 24 divisors (see below), whose sum is σ = 1189480320. Its totient is φ = 203910624.

The previous prime is 538097851. The next prime is 538097863. The reversal of 538097860 is 68790835.

It is a self number, because there is not a number n which added to its sum of digits gives 538097860.

It is not an unprimeable number, because it can be changed into a prime (538097863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 707644 + ... + 708403.

It is an arithmetic number, because the mean of its divisors is an integer number (49561680).

Almost surely, 2538097860 is an apocalyptic number.

It is an amenable number.

538097860 is an abundant number, since it is smaller than the sum of its proper divisors (651382460).

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

538097860 is a wasteful number, since it uses less digits than its factorization.

538097860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1416075 (or 1416073 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 538097860 is about 23196.9364356589. The cubic root of 538097860 is about 813.3680115257.

The spelling of 538097860 in words is "five hundred thirty-eight million, ninety-seven thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 1416047 2832094 5664188 7080235 14160470 26904893 28320940 53809786 107619572 134524465 269048930 538097860