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142142355 = 32517712617
BaseRepresentation
bin10000111100011…
…10101110010011
3100220110120122200
420132032232103
5242342023410
622034334243
73344122125
oct1036165623
9326416580
10142142355
1173265723
123b72a383
13235aa504
1414c41215
15c72b3c0
hex878eb93

142142355 has 48 divisors (see below), whose sum is σ = 264648384. Its totient is φ = 70318080.

The previous prime is 142142353. The next prime is 142142381. The reversal of 142142355 is 553241241.

142142355 is a `hidden beast` number, since 1 + 421 + 4 + 235 + 5 = 666.

It is not a de Polignac number, because 142142355 - 21 = 142142353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142142353) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 53007 + ... + 55623.

It is an arithmetic number, because the mean of its divisors is an integer number (5513508).

Almost surely, 2142142355 is an apocalyptic number.

142142355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

142142355 is a deficient number, since it is larger than the sum of its proper divisors (122506029).

142142355 is a wasteful number, since it uses less digits than its factorization.

142142355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2716 (or 2713 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 142142355 is about 11922.3468746719. The cubic root of 142142355 is about 521.8846246089.

Adding to 142142355 its reverse (553241241), we get a palindrome (695383596).

The spelling of 142142355 in words is "one hundred forty-two million, one hundred forty-two thousand, three hundred fifty-five".

Divisors: 1 3 5 9 15 17 45 51 71 85 153 213 255 355 639 765 1065 1207 2617 3195 3621 6035 7851 10863 13085 18105 23553 39255 44489 54315 117765 133467 185807 222445 400401 557421 667335 929035 1672263 2002005 2787105 3158719 8361315 9476157 15793595 28428471 47380785 142142355