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1242141411 = 3779748729
BaseRepresentation
bin100101000001001…
…1001001011100011
310012120022022200110
41022002121023203
510020442011121
6323131222403
742532012350
oct11202311343
93176268613
101242141411
1158817a255
122a7ba7a03
1316a45a924
14bad7d627
15740b1d76
hex4a0992e3

1242141411 has 16 divisors (see below), whose sum is σ = 1916748800. Its totient is φ = 700809408.

The previous prime is 1242141389. The next prime is 1242141413. The reversal of 1242141411 is 1141412421.

It is not a de Polignac number, because 1242141411 - 211 = 1242139363 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1242141413) 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, 372706 + ... + 376023.

It is an arithmetic number, because the mean of its divisors is an integer number (119796800).

Almost surely, 21242141411 is an apocalyptic number.

1242141411 is a deficient number, since it is larger than the sum of its proper divisors (674607389).

1242141411 is an equidigital number, since it uses as much as digits as its factorization.

1242141411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748818.

The product of its digits is 256, while the sum is 21.

The square root of 1242141411 is about 35244.0266002623. The cubic root of 1242141411 is about 1074.9551554396.

Adding to 1242141411 its reverse (1141412421), we get a palindrome (2383553832).

The spelling of 1242141411 in words is "one billion, two hundred forty-two million, one hundred forty-one thousand, four hundred eleven".

Divisors: 1 3 7 21 79 237 553 1659 748729 2246187 5241103 15723309 59149591 177448773 414047137 1242141411