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42630151 = 131325421
BaseRepresentation
bin1010001010011…
…1110000000111
32222012211120111
42202213300013
541403131101
64121413451
71025231104
oct242476007
988184514
1042630151
1122077733
121233a287
138aa7a55
145939aab
153b21251
hex28a7c07

42630151 has 4 divisors (see below), whose sum is σ = 42955704. Its totient is φ = 42304600.

The previous prime is 42630143. The next prime is 42630193. The reversal of 42630151 is 15103624.

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 42630151 - 23 = 42630143 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42630451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162580 + ... + 162841.

It is an arithmetic number, because the mean of its divisors is an integer number (10738926).

Almost surely, 242630151 is an apocalyptic number.

42630151 is a deficient number, since it is larger than the sum of its proper divisors (325553).

42630151 is a wasteful number, since it uses less digits than its factorization.

42630151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325552.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 42630151 is about 6529.1769006514. The cubic root of 42630151 is about 349.3324719020.

Adding to 42630151 its reverse (15103624), we get a palindrome (57733775).

The spelling of 42630151 in words is "forty-two million, six hundred thirty thousand, one hundred fifty-one".

Divisors: 1 131 325421 42630151