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142141571 = 1113993997
BaseRepresentation
bin10000111100011…
…10100010000011
3100220110112120122
420132032202003
5242342012241
622034330455
73344116625
oct1036164203
9326415518
10142141571
1173265080
123b729a2b
13235aa050
1414c40c15
15c72b04b
hex878e883

142141571 has 8 divisors (see below), whose sum is σ = 166991664. Its totient is φ = 119279520.

The previous prime is 142141523. The next prime is 142141579. The reversal of 142141571 is 175141241.

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 142141571 - 218 = 141879427 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 142141571.

It is not an unprimeable number, because it can be changed into a prime (142141579) 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, 496856 + ... + 497141.

It is an arithmetic number, because the mean of its divisors is an integer number (20873958).

Almost surely, 2142141571 is an apocalyptic number.

142141571 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

142141571 is a deficient number, since it is larger than the sum of its proper divisors (24850093).

142141571 is a wasteful number, since it uses less digits than its factorization.

142141571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994021.

The product of its digits is 1120, while the sum is 26.

The square root of 142141571 is about 11922.3139951941. The cubic root of 142141571 is about 521.8836651053.

The spelling of 142141571 in words is "one hundred forty-two million, one hundred forty-one thousand, five hundred seventy-one".

Divisors: 1 11 13 143 993997 10933967 12921961 142141571