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42105574142 = 283253648037
BaseRepresentation
bin100111001101101100…
…000001001011111110
311000200102001210012222
4213031230001023332
51142213011333032
631202032325342
73020262321632
oct471554011376
9130612053188
1042105574142
1116947554065
1281b10a3852
133c80372618
1420760a8dc2
1511667a0a12
hex9cdb012fe

42105574142 has 8 divisors (see below), whose sum is σ = 63919305576. Its totient is φ = 20799138952.

The previous prime is 42105574127. The next prime is 42105574193. The reversal of 42105574142 is 24147550124.

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

It is a congruent number.

It is an unprimeable number.

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, 126823853 + ... + 126824184.

It is an arithmetic number, because the mean of its divisors is an integer number (7989913197).

Almost surely, 242105574142 is an apocalyptic number.

42105574142 is a deficient number, since it is larger than the sum of its proper divisors (21813731434).

42105574142 is a wasteful number, since it uses less digits than its factorization.

42105574142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253648122.

The product of its (nonzero) digits is 44800, while the sum is 35.

The spelling of 42105574142 in words is "forty-two billion, one hundred five million, five hundred seventy-four thousand, one hundred forty-two".

Divisors: 1 2 83 166 253648037 507296074 21052787071 42105574142