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142412444 = 2247757513
BaseRepresentation
bin10000111110100…
…00101010011100
3100220222022010222
420133100222130
5242424144234
622044220512
73346325426
oct1037205234
9326868128
10142412444
117342a639
123b83a738
1323673425
1414cb1816
15c78142e
hex87d0a9c

142412444 has 12 divisors (see below), whose sum is σ = 254524704. Its totient is φ = 69691104.

The previous prime is 142412441. The next prime is 142412449. The reversal of 142412444 is 444214241.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142412441) 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 3 ways as a sum of consecutive naturals, for example, 378569 + ... + 378944.

It is an arithmetic number, because the mean of its divisors is an integer number (21210392).

Almost surely, 2142412444 is an apocalyptic number.

It is an amenable number.

142412444 is a deficient number, since it is larger than the sum of its proper divisors (112112260).

142412444 is a wasteful number, since it uses less digits than its factorization.

142412444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 757564 (or 757562 counting only the distinct ones).

The product of its digits is 4096, while the sum is 26.

The square root of 142412444 is about 11933.6685055351. The cubic root of 142412444 is about 522.2149650686.

Adding to 142412444 its reverse (444214241), we get a palindrome (586626685).

The spelling of 142412444 in words is "one hundred forty-two million, four hundred twelve thousand, four hundred forty-four".

Divisors: 1 2 4 47 94 188 757513 1515026 3030052 35603111 71206222 142412444