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42307130 = 255971707
BaseRepresentation
bin1010000101100…
…0111000111010
32221121102110202
42201120320322
541312312010
64110442202
71022414255
oct241307072
987542422
1042307130
1121976a78
1212203362
1389c3a08
14589409c
153aaa6a5
hex2858e3a

42307130 has 16 divisors (see below), whose sum is σ = 77444640. Its totient is φ = 16635792.

The previous prime is 42307123. The next prime is 42307171. The reversal of 42307130 is 3170324.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35264 + ... + 36443.

It is an arithmetic number, because the mean of its divisors is an integer number (4840290).

Almost surely, 242307130 is an apocalyptic number.

42307130 is a deficient number, since it is larger than the sum of its proper divisors (35137510).

42307130 is a wasteful number, since it uses less digits than its factorization.

42307130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71773.

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 42307130 is about 6504.3931308001. The cubic root of 42307130 is about 348.4479028110.

Adding to 42307130 its reverse (3170324), we get a palindrome (45477454).

The spelling of 42307130 in words is "forty-two million, three hundred seven thousand, one hundred thirty".

Divisors: 1 2 5 10 59 118 295 590 71707 143414 358535 717070 4230713 8461426 21153565 42307130