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42979211 = 1171113487
BaseRepresentation
bin1010001111110…
…0111110001011
32222212120101122
42203330332023
542000313321
64133105455
71031213552
oct243747613
988776348
1042979211
1122295a10
121248828b
138b9a8b2
1459cad99
153b8e8ab
hex28fcf8b

42979211 has 16 divisors (see below), whose sum is σ = 48066048. Its totient is φ = 38102400.

The previous prime is 42979201. The next prime is 42979219. The reversal of 42979211 is 11297924.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-42979211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42979219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88010 + ... + 88496.

It is an arithmetic number, because the mean of its divisors is an integer number (3004128).

Almost surely, 242979211 is an apocalyptic number.

42979211 is a deficient number, since it is larger than the sum of its proper divisors (5086837).

42979211 is a wasteful number, since it uses less digits than its factorization.

42979211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682.

The product of its digits is 9072, while the sum is 35.

The square root of 42979211 is about 6555.8531862756. The cubic root of 42979211 is about 350.2833379126.

The spelling of 42979211 in words is "forty-two million, nine hundred seventy-nine thousand, two hundred eleven".

Divisors: 1 11 71 113 487 781 1243 5357 8023 34577 55031 88253 380347 605341 3907201 42979211