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141204021 = 378118291
BaseRepresentation
bin10000110101010…
…01101000110101
3100211200220111120
420122221220311
5242122012041
622002254153
73333133350
oct1032515065
9324626446
10141204021
1172784742
123b357359
132333c39a
1414a79297
15c5e3366
hex86a9a35

141204021 has 16 divisors (see below), whose sum is σ = 215459328. Its totient is φ = 80578800.

The previous prime is 141204013. The next prime is 141204043. The reversal of 141204021 is 120402141.

It is not a de Polignac number, because 141204021 - 23 = 141204013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (141204001) 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 15 ways as a sum of consecutive naturals, for example, 12886 + ... + 21176.

It is an arithmetic number, because the mean of its divisors is an integer number (13466208).

Almost surely, 2141204021 is an apocalyptic number.

It is an amenable number.

141204021 is a deficient number, since it is larger than the sum of its proper divisors (74255307).

141204021 is an equidigital number, since it uses as much as digits as its factorization.

141204021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9112.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 141204021 is about 11882.9298154958. The cubic root of 141204021 is about 520.7337041704.

Adding to 141204021 its reverse (120402141), we get a palindrome (261606162).

The spelling of 141204021 in words is "one hundred forty-one million, two hundred four thousand, twenty-one".

Divisors: 1 3 7 21 811 2433 5677 8291 17031 24873 58037 174111 6724001 20172003 47068007 141204021