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142502255 = 5712732059
BaseRepresentation
bin10000111111001…
…10100101101111
3100221010212100022
420133212211233
5242440033010
622050152355
73350151320
oct1037464557
9327125308
10142502255
1173491065
123b8826bb
13236a527c
1414cd6447
15c79cd55
hex87e696f

142502255 has 16 divisors (see below), whose sum is σ = 196976640. Its totient is φ = 96943392.

The previous prime is 142502249. The next prime is 142502291. The reversal of 142502255 is 552205241.

It is not a de Polignac number, because 142502255 - 210 = 142501231 is a prime.

It is a super-3 number, since 3×1425022553 (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11585 + ... + 20474.

It is an arithmetic number, because the mean of its divisors is an integer number (12311040).

Almost surely, 2142502255 is an apocalyptic number.

142502255 is a deficient number, since it is larger than the sum of its proper divisors (54474385).

142502255 is a wasteful number, since it uses less digits than its factorization.

142502255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32198.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 142502255 is about 11937.4308374960. The cubic root of 142502255 is about 522.3247185686.

Adding to 142502255 its reverse (552205241), we get a palindrome (694707496).

The spelling of 142502255 in words is "one hundred forty-two million, five hundred two thousand, two hundred fifty-five".

Divisors: 1 5 7 35 127 635 889 4445 32059 160295 224413 1122065 4071493 20357465 28500451 142502255