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42190931076 = 2237502272989
BaseRepresentation
bin100111010010110001…
…101000010010000100
311000220100200100220220
4213102301220102010
51142401334243301
631214322024340
73022346665650
oct472261502204
9130810610826
1042190931076
1116990753a88
1282157a80b0
133c94c5a098
142083567a60
15116e011936
hex9d2c68484

42190931076 has 24 divisors (see below), whose sum is σ = 112509149760. Its totient is φ = 12054551712.

The previous prime is 42190931051. The next prime is 42190931077. The reversal of 42190931076 is 67013909124.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (42190931077) 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, 251136411 + ... + 251136578.

It is an arithmetic number, because the mean of its divisors is an integer number (4687881240).

Almost surely, 242190931076 is an apocalyptic number.

It is an amenable number.

42190931076 is an abundant number, since it is smaller than the sum of its proper divisors (70318218684).

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

42190931076 is a wasteful number, since it uses less digits than its factorization.

42190931076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502273003 (or 502273001 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 42.

The spelling of 42190931076 in words is "forty-two billion, one hundred ninety million, nine hundred thirty-one thousand, seventy-six".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 502272989 1004545978 1506818967 2009091956 3013637934 3515910923 6027275868 7031821846 10547732769 14063643692 21095465538 42190931076