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142271575 = 527180153
BaseRepresentation
bin10000111101011…
…10010001010111
3100220201010220121
420132232101113
5242410142300
622041212411
73345200635
oct1036562127
9326633817
10142271575
1173343816
123b791107
1323624284
1414c76355
15c75481a
hex87ae457

142271575 has 12 divisors (see below), whose sum is σ = 178903728. Its totient is φ = 112212800.

The previous prime is 142271561. The next prime is 142271641. The reversal of 142271575 is 575172241.

It is not a de Polignac number, because 142271575 - 27 = 142271447 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 142271575.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38302 + ... + 41851.

It is an arithmetic number, because the mean of its divisors is an integer number (14908644).

Almost surely, 2142271575 is an apocalyptic number.

142271575 is a deficient number, since it is larger than the sum of its proper divisors (36632153).

142271575 is an equidigital number, since it uses as much as digits as its factorization.

142271575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80234 (or 80229 counting only the distinct ones).

The product of its digits is 19600, while the sum is 34.

The square root of 142271575 is about 11927.7648786351. The cubic root of 142271575 is about 522.0427231710.

The spelling of 142271575 in words is "one hundred forty-two million, two hundred seventy-one thousand, five hundred seventy-five".

Divisors: 1 5 25 71 355 1775 80153 400765 2003825 5690863 28454315 142271575