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42003202431 = 319970357123
BaseRepresentation
bin100111000111100101…
…100000000101111111
311000102021102202122010
4213013211200011333
51142010304434211
631143534222303
73014610221061
oct470745400577
9130367382563
1042003202431
11168a4792743
128182954993
133c650ab448
14206665b731
15115c7cd4a6
hex9c796017f

42003202431 has 8 divisors (see below), whose sum is σ = 56285699200. Its totient is φ = 27861420312.

The previous prime is 42003202369. The next prime is 42003202433. The reversal of 42003202431 is 13420230024.

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

It is not a de Polignac number, because 42003202431 - 223 = 41994813823 is a prime.

It is a super-2 number, since 2×420032024312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42003202398 and 42003202407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42003202433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35177965 + ... + 35179158.

It is an arithmetic number, because the mean of its divisors is an integer number (7035712400).

Almost surely, 242003202431 is an apocalyptic number.

42003202431 is a deficient number, since it is larger than the sum of its proper divisors (14282496769).

42003202431 is a wasteful number, since it uses less digits than its factorization.

42003202431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70357325.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 42003202431 its reverse (13420230024), we get a palindrome (55423432455).

The spelling of 42003202431 in words is "forty-two billion, three million, two hundred two thousand, four hundred thirty-one".

Divisors: 1 3 199 597 70357123 211071369 14001067477 42003202431