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42010830 = 2325466787
BaseRepresentation
bin1010000001000…
…0100011001110
32221001101000200
42200100203032
541223321310
64100234330
71020041361
oct240204316
987041020
1042010830
11217943a4
121209b9a6
13891bba4
1458180d8
153a4c9c0
hex28108ce

42010830 has 24 divisors (see below), whose sum is σ = 109228392. Its totient is φ = 11202864.

The previous prime is 42010819. The next prime is 42010861. The reversal of 42010830 is 3801024.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 233304 + ... + 233483.

It is an arithmetic number, because the mean of its divisors is an integer number (4551183).

Almost surely, 242010830 is an apocalyptic number.

42010830 is an abundant number, since it is smaller than the sum of its proper divisors (67217562).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42010830 is a wasteful number, since it uses less digits than its factorization.

42010830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466800 (or 466797 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 42010830 is about 6481.5761971915. The cubic root of 42010830 is about 347.6325391976.

Adding to 42010830 its reverse (3801024), we get a palindrome (45811854).

The spelling of 42010830 in words is "forty-two million, ten thousand, eight hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 466787 933574 1400361 2333935 2800722 4201083 4667870 7001805 8402166 14003610 21005415 42010830