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1230365442 = 231879109133
BaseRepresentation
bin100100101010101…
…1110001100000010
310011202011001002110
41021111132030002
510004433143232
6322031000150
742326635155
oct11125361402
93152131073
101230365442
11581566849
122a4069056
13167b968b7
14b9595c9c
1573037acc
hex4955e302

1230365442 has 16 divisors (see below), whose sum is σ = 2462063040. Its totient is φ = 409899792.

The previous prime is 1230365441. The next prime is 1230365453. The reversal of 1230365442 is 2445630321.

It is a super-3 number, since 3×12303654423 (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1230365441) 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, 43293 + ... + 65840.

It is an arithmetic number, because the mean of its divisors is an integer number (153878940).

Almost surely, 21230365442 is an apocalyptic number.

1230365442 is an abundant number, since it is smaller than the sum of its proper divisors (1231697598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1230365442 is a wasteful number, since it uses less digits than its factorization.

1230365442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111017.

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 1230365442 is about 35076.5654247961. The cubic root of 1230365442 is about 1071.5473701974.

Adding to 1230365442 its reverse (2445630321), we get a palindrome (3675995763).

The spelling of 1230365442 in words is "one billion, two hundred thirty million, three hundred sixty-five thousand, four hundred forty-two".

Divisors: 1 2 3 6 1879 3758 5637 11274 109133 218266 327399 654798 205060907 410121814 615182721 1230365442