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1229307369 = 310316324407
BaseRepresentation
bin100100101000101…
…1011110111101001
310011200011021200120
41021101123313221
510004200313434
6321552153453
742314640333
oct11121336751
93150137616
101229307369
11580a03904
122a3838889
131678b6114
14b939c453
1572dc9349
hex4945bde9

1229307369 has 16 divisors (see below), whose sum is σ = 1665211392. Its totient is φ = 806569488.

The previous prime is 1229307307. The next prime is 1229307397. The reversal of 1229307369 is 9637039221.

It is not a de Polignac number, because 1229307369 - 27 = 1229307241 is a prime.

It is a super-2 number, since 2×12293073692 = 3022393214955404322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1229307369.

It is not an unprimeable number, because it can be changed into a prime (1229309369) 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, 38164 + ... + 62570.

It is an arithmetic number, because the mean of its divisors is an integer number (104075712).

Almost surely, 21229307369 is an apocalyptic number.

It is an amenable number.

1229307369 is a deficient number, since it is larger than the sum of its proper divisors (435904023).

1229307369 is a wasteful number, since it uses less digits than its factorization.

1229307369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24676.

The product of its (nonzero) digits is 122472, while the sum is 42.

The square root of 1229307369 is about 35061.4798461217. The cubic root of 1229307369 is about 1071.2401171759.

The spelling of 1229307369 in words is "one billion, two hundred twenty-nine million, three hundred seven thousand, three hundred sixty-nine".

Divisors: 1 3 103 163 309 489 16789 24407 50367 73221 2513921 3978341 7541763 11935023 409769123 1229307369