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42630965 = 5131934519
BaseRepresentation
bin1010001010011…
…1111100110101
32222012212200122
42202213330311
541403142330
64121421325
71025233346
oct242477465
988185618
1042630965
1122078303
121233a845
138aa8230
14593a0cd
153b215e5
hex28a7f35

42630965 has 16 divisors (see below), whose sum is σ = 57993600. Its totient is φ = 29823552.

The previous prime is 42630953. The next prime is 42630967. The reversal of 42630965 is 56903624.

It is a cyclic number.

It is not a de Polignac number, because 42630965 - 24 = 42630949 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42630967) 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, 16025 + ... + 18494.

It is an arithmetic number, because the mean of its divisors is an integer number (3624600).

Almost surely, 242630965 is an apocalyptic number.

It is an amenable number.

42630965 is a deficient number, since it is larger than the sum of its proper divisors (15362635).

42630965 is a wasteful number, since it uses less digits than its factorization.

42630965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34556.

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 42630965 is about 6529.2392359294. The cubic root of 42630965 is about 349.3346953270.

The spelling of 42630965 in words is "forty-two million, six hundred thirty thousand, nine hundred sixty-five".

Divisors: 1 5 13 19 65 95 247 1235 34519 172595 448747 655861 2243735 3279305 8526193 42630965