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42242030 = 2523183661
BaseRepresentation
bin1010000100100…
…0111111101110
32221111010011122
42201020333232
541303221110
64105220542
71022023415
oct241107756
987433148
1042242030
1121932076
1212191752
1389a01ac
14587847c
153a96255
hex2848fee

42242030 has 16 divisors (see below), whose sum is σ = 79341984. Its totient is φ = 16162080.

The previous prime is 42242029. The next prime is 42242033. The reversal of 42242030 is 3024224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42242033) 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, 91601 + ... + 92060.

It is an arithmetic number, because the mean of its divisors is an integer number (4958874).

Almost surely, 242242030 is an apocalyptic number.

42242030 is a deficient number, since it is larger than the sum of its proper divisors (37099954).

42242030 is a wasteful number, since it uses less digits than its factorization.

42242030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183691.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 42242030 is about 6499.3868941616. The cubic root of 42242030 is about 348.2690865895.

Adding to 42242030 its reverse (3024224), we get a palindrome (45266254).

The spelling of 42242030 in words is "forty-two million, two hundred forty-two thousand, thirty".

Divisors: 1 2 5 10 23 46 115 230 183661 367322 918305 1836610 4224203 8448406 21121015 42242030