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206424130 = 25119072069
BaseRepresentation
bin11000100110111…
…00100001000010
3112101102102200011
430103130201002
5410321033010
632252215134
75054401423
oct1423344102
9471372604
10206424130
11a6580560
125916a4aa
13339c6373
141d5b564a
15131c7a8a
hexc4dc842

206424130 has 32 divisors (see below), whose sum is σ = 405984960. Its totient is φ = 74944320.

The previous prime is 206424109. The next prime is 206424143. The reversal of 206424130 is 31424602.

It is a happy number.

It is a super-2 number, since 2×2064241302 = 85221842892513800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

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, 98736 + ... + 100804.

It is an arithmetic number, because the mean of its divisors is an integer number (12687030).

Almost surely, 2206424130 is an apocalyptic number.

206424130 is a deficient number, since it is larger than the sum of its proper divisors (199560830).

206424130 is a wasteful number, since it uses less digits than its factorization.

206424130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2994.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 206424130 is about 14367.4677657547. The cubic root of 206424130 is about 590.9991019633. Note that the first 3 decimals are identical.

Adding to 206424130 its reverse (31424602), we get a palindrome (237848732).

The spelling of 206424130 in words is "two hundred six million, four hundred twenty-four thousand, one hundred thirty".

Divisors: 1 2 5 10 11 22 55 110 907 1814 2069 4138 4535 9070 9977 10345 19954 20690 22759 45518 49885 99770 113795 227590 1876583 3753166 9382915 18765830 20642413 41284826 103212065 206424130