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143112210 = 23523207409
BaseRepresentation
bin10001000011110…
…11100000010010
3100222021212001020
420201323200102
5243114042320
622111220310
73355301523
oct1041734022
9328255036
10143112210
117386835a
123bb17696
1323859aa7
141501484a
15c86d940
hex887b812

143112210 has 32 divisors (see below), whose sum is σ = 358404480. Its totient is φ = 36503808.

The previous prime is 143112209. The next prime is 143112259. The reversal of 143112210 is 12211341.

It is a super-2 number, since 2×1431122102 = 40962209302168200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 143112210.

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, 103015 + ... + 104394.

It is an arithmetic number, because the mean of its divisors is an integer number (11200140).

Almost surely, 2143112210 is an apocalyptic number.

143112210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

143112210 is an abundant number, since it is smaller than the sum of its proper divisors (215292270).

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

143112210 is a wasteful number, since it uses less digits than its factorization.

143112210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207442.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 143112210 is about 11962.9515588754. The cubic root of 143112210 is about 523.0688964754.

Adding to 143112210 its reverse (12211341), we get a palindrome (155323551).

The spelling of 143112210 in words is "one hundred forty-three million, one hundred twelve thousand, two hundred ten".

Divisors: 1 2 3 5 6 10 15 23 30 46 69 115 138 230 345 690 207409 414818 622227 1037045 1244454 2074090 3111135 4770407 6222270 9540814 14311221 23852035 28622442 47704070 71556105 143112210