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142132471 = 1315597013
BaseRepresentation
bin10000111100011…
…00010011110111
3100220110002002121
420132030103313
5242341214341
622034220411
73344051245
oct1036142367
9326402077
10142132471
1173259258
123b724707
13235a5b70
1414c3b795
15c7284d1
hex878c4f7

142132471 has 8 divisors (see below), whose sum is σ = 153185760. Its totient is φ = 131096352.

The previous prime is 142132469. The next prime is 142132493. The reversal of 142132471 is 174231241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142132471 - 21 = 142132469 is a prime.

It is a super-3 number, since 3×1421324713 (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142132421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16761 + ... + 23773.

It is an arithmetic number, because the mean of its divisors is an integer number (19148220).

Almost surely, 2142132471 is an apocalyptic number.

142132471 is a deficient number, since it is larger than the sum of its proper divisors (11053289).

142132471 is a wasteful number, since it uses less digits than its factorization.

142132471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8585.

The product of its digits is 1344, while the sum is 25.

The square root of 142132471 is about 11921.9323517624. The cubic root of 142132471 is about 521.8725277519.

The spelling of 142132471 in words is "one hundred forty-two million, one hundred thirty-two thousand, four hundred seventy-one".

Divisors: 1 13 1559 7013 20267 91169 10933267 142132471