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42230190 = 23511511223
BaseRepresentation
bin1010000100011…
…0000110101110
32221110111221010
42201012012232
541302331230
64105050050
71021644042
oct241060656
987414833
1042230190
1121924192
1212186926
1389979a2
145874022
153a929b0
hex28461ae

42230190 has 32 divisors (see below), whose sum is σ = 101523456. Its totient is φ = 11242400.

The previous prime is 42230147. The next prime is 42230191. The reversal of 42230190 is 9103224.

It is a super-2 number, since 2×422301902 = 3566777894872200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42230191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33919 + ... + 35141.

It is an arithmetic number, because the mean of its divisors is an integer number (3172608).

Almost surely, 242230190 is an apocalyptic number.

42230190 is an abundant number, since it is smaller than the sum of its proper divisors (59293266).

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

42230190 is a wasteful number, since it uses less digits than its factorization.

42230190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2384.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 42230190 is about 6498.4759751806. The cubic root of 42230190 is about 348.2365448192.

The spelling of 42230190 in words is "forty-two million, two hundred thirty thousand, one hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 1151 1223 2302 2446 3453 3669 5755 6115 6906 7338 11510 12230 17265 18345 34530 36690 1407673 2815346 4223019 7038365 8446038 14076730 21115095 42230190