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1230532218413 = 1996183578987
BaseRepresentation
bin10001111010000001011…
…011111000111000101101
311100122012220110111202122
4101322001123320320231
5130130112221442123
62341144304002325
7154621510164041
oct21720133707055
94318186414678
101230532218413
114349583a2753
1217a59a9003a5
138c067005834
14437b5514021
15220203e3bc8
hex11e816f8e2d

1230532218413 has 4 divisors (see below), whose sum is σ = 1236715797600. Its totient is φ = 1224348639228.

The previous prime is 1230532218401. The next prime is 1230532218473. The reversal of 1230532218413 is 3148122350321.

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 1230532218413 - 222 = 1230528024109 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230532218473) 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, 3091789295 + ... + 3091789692.

It is an arithmetic number, because the mean of its divisors is an integer number (309178949400).

Almost surely, 21230532218413 is an apocalyptic number.

It is an amenable number.

1230532218413 is a deficient number, since it is larger than the sum of its proper divisors (6183579187).

1230532218413 is an equidigital number, since it uses as much as digits as its factorization.

1230532218413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6183579186.

The product of its (nonzero) digits is 34560, while the sum is 35.

Adding to 1230532218413 its reverse (3148122350321), we get a palindrome (4378654568734).

The spelling of 1230532218413 in words is "one trillion, two hundred thirty billion, five hundred thirty-two million, two hundred eighteen thousand, four hundred thirteen".

Divisors: 1 199 6183578987 1230532218413