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142544426 = 21492112267
BaseRepresentation
bin10000111111100…
…00111000101010
3100221020000012012
420133300320222
5242442410201
622051115522
73350415263
oct1037607052
9327200165
10142544426
117350a812
123b8a2ba2
13236bb51b
1414d0796a
15c7aa5bb
hex87f0e2a

142544426 has 16 divisors (see below), whose sum is σ = 216367200. Its totient is φ = 70427280.

The previous prime is 142544411. The next prime is 142544459. The reversal of 142544426 is 624445241.

142544426 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 142544392 and 142544401.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61745 + ... + 64011.

It is an arithmetic number, because the mean of its divisors is an integer number (13522950).

Almost surely, 2142544426 is an apocalyptic number.

142544426 is a deficient number, since it is larger than the sum of its proper divisors (73822774).

142544426 is a wasteful number, since it uses less digits than its factorization.

142544426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2629.

The product of its digits is 30720, while the sum is 32.

The square root of 142544426 is about 11939.1970416775. The cubic root of 142544426 is about 522.3762377141.

Adding to 142544426 its reverse (624445241), we get a palindrome (766989667).

The spelling of 142544426 in words is "one hundred forty-two million, five hundred forty-four thousand, four hundred twenty-six".

Divisors: 1 2 149 211 298 422 2267 4534 31439 62878 337783 478337 675566 956674 71272213 142544426