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100442141 = 127790883
BaseRepresentation
bin1011111110010…
…10000000011101
320222222222201022
411333022000131
5201203122031
613544453525
72326513142
oct577120035
9228888638
10100442141
1151773738
122977a2a5
1317a69b27
14d4a83c9
158c4097b
hex5fca01d

100442141 has 4 divisors (see below), whose sum is σ = 101233152. Its totient is φ = 99651132.

The previous prime is 100442123. The next prime is 100442183. The reversal of 100442141 is 141244001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 100442141 - 214 = 100425757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100442941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 395315 + ... + 395568.

It is an arithmetic number, because the mean of its divisors is an integer number (25308288).

Almost surely, 2100442141 is an apocalyptic number.

It is an amenable number.

100442141 is a deficient number, since it is larger than the sum of its proper divisors (791011).

100442141 is an equidigital number, since it uses as much as digits as its factorization.

100442141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791010.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 100442141 is about 10022.0826677892. The cubic root of 100442141 is about 464.8419565422.

Adding to 100442141 its reverse (141244001), we get a palindrome (241686142).

The spelling of 100442141 in words is "one hundred million, four hundred forty-two thousand, one hundred forty-one".

Divisors: 1 127 790883 100442141