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142272141 = 311371091069
BaseRepresentation
bin10000111101011…
…10011010001101
3100220201011200120
420132232122031
5242410202031
622041215153
73345202404
oct1036563215
9326634616
10142272141
1173344190
123b7914b9
13236245cb
1414c7663b
15c754a96
hex87ae68d

142272141 has 32 divisors (see below), whose sum is σ = 214684800. Its totient is φ = 83047680.

The previous prime is 142272121. The next prime is 142272197. The reversal of 142272141 is 141272241.

It is not a de Polignac number, because 142272141 - 26 = 142272077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142272121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 132555 + ... + 133623.

It is an arithmetic number, because the mean of its divisors is an integer number (6708900).

Almost surely, 2142272141 is an apocalyptic number.

142272141 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

142272141 is a deficient number, since it is larger than the sum of its proper divisors (72412659).

142272141 is a wasteful number, since it uses less digits than its factorization.

142272141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1229.

The product of its digits is 896, while the sum is 24.

The square root of 142272141 is about 11927.7886047666. The cubic root of 142272141 is about 522.0434154521.

The spelling of 142272141 in words is "one hundred forty-two million, two hundred seventy-two thousand, one hundred forty-one".

Divisors: 1 3 11 33 37 109 111 327 407 1069 1199 1221 3207 3597 4033 11759 12099 35277 39553 44363 116521 118659 133089 349563 435083 1281731 1305249 3845193 4311277 12933831 47424047 142272141