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42148417989 = 3127110625769
BaseRepresentation
bin100111010000001111…
…011101000111000101
311000210101200110221010
4213100033131013011
51142304443333424
631210202512433
73021322433046
oct472017350705
9130711613833
1042148417989
11169697572a7
128203505719
133c891c3702
14207ba5c8cd
15116a415229
hex9d03dd1c5

42148417989 has 8 divisors (see below), whose sum is σ = 56640394240. Its totient is φ = 27877693536.

The previous prime is 42148417973. The next prime is 42148418003. The reversal of 42148417989 is 98971484124.

42148417989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42148417989 - 24 = 42148417973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42148417189) 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, 55312504 + ... + 55313265.

It is an arithmetic number, because the mean of its divisors is an integer number (7080049280).

Almost surely, 242148417989 is an apocalyptic number.

It is an amenable number.

42148417989 is a deficient number, since it is larger than the sum of its proper divisors (14491976251).

42148417989 is a wasteful number, since it uses less digits than its factorization.

42148417989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110625899.

The product of its digits is 4644864, while the sum is 57.

The spelling of 42148417989 in words is "forty-two billion, one hundred forty-eight million, four hundred seventeen thousand, nine hundred eighty-nine".

Divisors: 1 3 127 381 110625769 331877307 14049472663 42148417989