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42100130 = 254210013
BaseRepresentation
bin1010000010011…
…0010110100010
32221012220112002
42200212112202
541234201010
64102204002
71020562622
oct240462642
987186462
1042100130
11218454a6
1212123602
138950727
14583c882
153a691a5
hex28265a2

42100130 has 8 divisors (see below), whose sum is σ = 75780252. Its totient is φ = 16840048.

The previous prime is 42100111. The next prime is 42100151. The reversal of 42100130 is 3100124.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 34421689 + 7678441 = 5867^2 + 2771^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2104997 + ... + 2105016.

Almost surely, 242100130 is an apocalyptic number.

42100130 is a deficient number, since it is larger than the sum of its proper divisors (33680122).

42100130 is a wasteful number, since it uses less digits than its factorization.

42100130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4210020.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 42100130 is about 6488.4612967945. The cubic root of 42100130 is about 347.8786790290.

Adding to 42100130 its reverse (3100124), we get a palindrome (45200254).

The spelling of 42100130 in words is "forty-two million, one hundred thousand, one hundred thirty".

Divisors: 1 2 5 10 4210013 8420026 21050065 42100130