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142001230 = 2572028589
BaseRepresentation
bin10000111011011…
…00010001001110
3100220012102001211
420131230101032
5242323014410
622031325034
73342663520
oct1035542116
9326172054
10142001230
1173179698
123b68077a
132355b1c7
1414c05a10
15c6ee68a
hex876c44e

142001230 has 16 divisors (see below), whose sum is σ = 292116960. Its totient is φ = 48686112.

The previous prime is 142001213. The next prime is 142001239. The reversal of 142001230 is 32100241.

It is a self number, because there is not a number n which added to its sum of digits gives 142001230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142001239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1014225 + ... + 1014364.

It is an arithmetic number, because the mean of its divisors is an integer number (18257310).

Almost surely, 2142001230 is an apocalyptic number.

142001230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142001230 is an abundant number, since it is smaller than the sum of its proper divisors (150115730).

142001230 is a wasteful number, since it uses less digits than its factorization.

142001230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2028603.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 142001230 is about 11916.4268973548. The cubic root of 142001230 is about 521.7118509700.

Adding to 142001230 its reverse (32100241), we get a palindrome (174101471).

The spelling of 142001230 in words is "one hundred forty-two million, one thousand, two hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 2028589 4057178 10142945 14200123 20285890 28400246 71000615 142001230