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1230354029 = 291271731931
BaseRepresentation
bin100100101010101…
…1011011001101101
310011202010110102202
41021111123121231
510004432312104
6322030431245
742326556662
oct11125333155
93152113382
101230354029
11581559213
122a4062525
13167b91648
14b9591a69
157303451e
hex4955b66d

1230354029 has 16 divisors (see below), whose sum is σ = 1290885120. Its totient is φ = 1171154880.

The previous prime is 1230354001. The next prime is 1230354043. The reversal of 1230354029 is 9204530321.

It is a cyclic number.

It is not a de Polignac number, because 1230354029 - 212 = 1230349933 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1230353992 and 1230354010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230354049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 636194 + ... + 638124.

It is an arithmetic number, because the mean of its divisors is an integer number (80680320).

Almost surely, 21230354029 is an apocalyptic number.

It is an amenable number.

1230354029 is a deficient number, since it is larger than the sum of its proper divisors (60531091).

1230354029 is a wasteful number, since it uses less digits than its factorization.

1230354029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2260.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 1230354029 is about 35076.4027374530. The cubic root of 1230354029 is about 1071.5440569249.

The spelling of 1230354029 in words is "one billion, two hundred thirty million, three hundred fifty-four thousand, twenty-nine".

Divisors: 1 29 127 173 1931 3683 5017 21971 55999 245237 334063 637159 7111873 9687827 42426001 1230354029