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42103223143 = 199321125551
BaseRepresentation
bin100111001101100011…
…000011001101100111
311000200020122100020221
4213031203003031213
51142211411120033
631201510105211
73020233330462
oct471543031547
9130606570227
1042103223143
1116946198793
1281b034b207
133c7ca2b4b7
142075a562d9
15116648912d
hex9cd8c3367

42103223143 has 4 divisors (see below), whose sum is σ = 42124350688. Its totient is φ = 42082095600.

The previous prime is 42103223131. The next prime is 42103223177. The reversal of 42103223143 is 34132230124.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42103223143 - 233 = 33513288551 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 (42103221143) 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 3 ways as a sum of consecutive naturals, for example, 10560783 + ... + 10564768.

It is an arithmetic number, because the mean of its divisors is an integer number (10531087672).

Almost surely, 242103223143 is an apocalyptic number.

42103223143 is a deficient number, since it is larger than the sum of its proper divisors (21127545).

42103223143 is a wasteful number, since it uses less digits than its factorization.

42103223143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21127544.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 42103223143 its reverse (34132230124), we get a palindrome (76235453267).

The spelling of 42103223143 in words is "forty-two billion, one hundred three million, two hundred twenty-three thousand, one hundred forty-three".

Divisors: 1 1993 21125551 42103223143