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42030212421 = 315838850329
BaseRepresentation
bin100111001001001100…
…100010010101000101
311000111011021000101010
4213021030202111011
51142034213244141
631150341152433
73015355624311
oct471114422505
9130434230333
1042030212421
1116908a6074a
12818b9bb719
133c6a8774a2
14206a08cb41
15115ed66416
hex9c9322545

42030212421 has 8 divisors (see below), whose sum is σ = 56075690880. Its totient is φ = 28002437792.

The previous prime is 42030212359. The next prime is 42030212461. The reversal of 42030212421 is 12421203024.

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

It is a cyclic number.

It is not a de Polignac number, because 42030212421 - 214 = 42030196037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42030212461) 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, 4420416 + ... + 4429913.

It is an arithmetic number, because the mean of its divisors is an integer number (7009461360).

Almost surely, 242030212421 is an apocalyptic number.

It is an amenable number.

42030212421 is a deficient number, since it is larger than the sum of its proper divisors (14045478459).

42030212421 is a wasteful number, since it uses less digits than its factorization.

42030212421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8851915.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 42030212421 its reverse (12421203024), we get a palindrome (54451415445).

The spelling of 42030212421 in words is "forty-two billion, thirty million, two hundred twelve thousand, four hundred twenty-one".

Divisors: 1 3 1583 4749 8850329 26550987 14010070807 42030212421