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199930031260 = 22510198975263
BaseRepresentation
bin1011101000110011000…
…0100010110010011100
3201010001110121220102121
42322030300202302130
511233424042000020
6231502510232324
720305311140341
oct2721460426234
9633043556377
10199930031260
11778763216a3
12328b81b56a4
1315b1299195b
149968aaa7c8
155302252baa
hex2e8cc22c9c

199930031260 has 24 divisors (see below), whose sum is σ = 424010030976. Its totient is φ = 79180209600.

The previous prime is 199930031251. The next prime is 199930031263. The reversal of 199930031260 is 62130039991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199930031263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49485612 + ... + 49489651.

It is an arithmetic number, because the mean of its divisors is an integer number (17667084624).

Almost surely, 2199930031260 is an apocalyptic number.

199930031260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

199930031260 is an abundant number, since it is smaller than the sum of its proper divisors (224079999716).

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

199930031260 is a wasteful number, since it uses less digits than its factorization.

199930031260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98975373 (or 98975371 counting only the distinct ones).

The product of its (nonzero) digits is 78732, while the sum is 43.

The spelling of 199930031260 in words is "one hundred ninety-nine billion, nine hundred thirty million, thirty-one thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 101 202 404 505 1010 2020 98975263 197950526 395901052 494876315 989752630 1979505260 9996501563 19993003126 39986006252 49982507815 99965015630 199930031260