Search a number
-
+
42147920190 = 2351404930673
BaseRepresentation
bin100111010000001101…
…100011100100111110
311000210100202012002010
4213100031203210332
51142304331421230
631210144112050
73021315260535
oct472015434476
9130710665063
1042147920190
11169694472a2
128203305626
133c8907ac5c
14207b96d31c
15116a3679b0
hex9d036393e

42147920190 has 16 divisors (see below), whose sum is σ = 101155008528. Its totient is φ = 11239445376.

The previous prime is 42147920167. The next prime is 42147920197. The reversal of 42147920190 is 9102974124.

42147920190 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×421479201902 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42147920197) 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, 702465307 + ... + 702465366.

It is an arithmetic number, because the mean of its divisors is an integer number (6322188033).

Almost surely, 242147920190 is an apocalyptic number.

42147920190 is an abundant number, since it is smaller than the sum of its proper divisors (59007088338).

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

42147920190 is a wasteful number, since it uses less digits than its factorization.

42147920190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1404930683.

The product of its (nonzero) digits is 36288, while the sum is 39.

The spelling of 42147920190 in words is "forty-two billion, one hundred forty-seven million, nine hundred twenty thousand, one hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 1404930673 2809861346 4214792019 7024653365 8429584038 14049306730 21073960095 42147920190