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142251841 = 1953141263
BaseRepresentation
bin10000111101010…
…01011101000001
3100220200010211201
420132221131001
5242404024331
622040541201
73345056254
oct1036513501
9326603751
10142251841
117332aa06
123b781801
13236182b4
1414c6d09b
15c74da61
hex87a9741

142251841 has 8 divisors (see below), whose sum is σ = 152565120. Its totient is φ = 132221232.

The previous prime is 142251829. The next prime is 142251853. The reversal of 142251841 is 148152241.

It is an interprime number because it is at equal distance from previous prime (142251829) and next prime (142251853).

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 142251841 - 27 = 142251713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142251821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69625 + ... + 71638.

It is an arithmetic number, because the mean of its divisors is an integer number (19070640).

Almost surely, 2142251841 is an apocalyptic number.

It is an amenable number.

142251841 is a deficient number, since it is larger than the sum of its proper divisors (10313279).

142251841 is a wasteful number, since it uses less digits than its factorization.

142251841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141335.

The product of its digits is 2560, while the sum is 28.

The square root of 142251841 is about 11926.9376203617. The cubic root of 142251841 is about 522.0185851390.

The spelling of 142251841 in words is "one hundred forty-two million, two hundred fifty-one thousand, eight hundred forty-one".

Divisors: 1 19 53 1007 141263 2683997 7486939 142251841