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1230374065 = 51753273113
BaseRepresentation
bin100100101010110…
…0000010010110001
310011202011110220211
41021111200102301
510004433432230
6322031104121
742330002254
oct11125402261
93152143824
101230374065
11581572278
122a4072041
13167b9a7bb
14b959909b
157303a42a
hex495604b1

1230374065 has 16 divisors (see below), whose sum is σ = 1592800848. Its totient is φ = 908916736.

The previous prime is 1230374027. The next prime is 1230374069. The reversal of 1230374065 is 5604730321.

It can be written as a sum of positive squares in 8 ways, for example, as 57517056 + 1172857009 = 7584^2 + 34247^2 .

It is a cyclic number.

It is not a de Polignac number, because 1230374065 - 29 = 1230373553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1230374069) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132052 + ... + 141061.

It is an arithmetic number, because the mean of its divisors is an integer number (99550053).

Almost surely, 21230374065 is an apocalyptic number.

It is an amenable number.

1230374065 is a deficient number, since it is larger than the sum of its proper divisors (362426783).

1230374065 is a wasteful number, since it uses less digits than its factorization.

1230374065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273188.

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 1230374065 is about 35076.6883414042. The cubic root of 1230374065 is about 1071.5498735001.

It can be divided in two parts, 12303 and 74065, that added together give a palindrome (86368).

The spelling of 1230374065 in words is "one billion, two hundred thirty million, three hundred seventy-four thousand, sixty-five".

Divisors: 1 5 17 53 85 265 901 4505 273113 1365565 4642921 14474989 23214605 72374945 246074813 1230374065