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42970067 = 717361093
BaseRepresentation
bin1010001111101…
…0101111010011
32222212002211222
42203322233103
542000020232
64132555255
71031145110
oct243725723
988762758
1042970067
112228a058
1212482b2b
138b9669a
1459c7907
153b8bd12
hex28fabd3

42970067 has 8 divisors (see below), whose sum is σ = 51997536. Its totient is φ = 34664832.

The previous prime is 42970021. The next prime is 42970087. The reversal of 42970067 is 76007924.

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 42970067 - 212 = 42965971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42970087) 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, 180428 + ... + 180665.

It is an arithmetic number, because the mean of its divisors is an integer number (6499692).

Almost surely, 242970067 is an apocalyptic number.

42970067 is a deficient number, since it is larger than the sum of its proper divisors (9027469).

42970067 is a wasteful number, since it uses less digits than its factorization.

42970067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361117.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 42970067 is about 6555.1557571121. The cubic root of 42970067 is about 350.2584947543.

The spelling of 42970067 in words is "forty-two million, nine hundred seventy thousand, sixty-seven".

Divisors: 1 7 17 119 361093 2527651 6138581 42970067