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1230719469 = 37436122343
BaseRepresentation
bin100100101011011…
…0100100111101101
310011202211000201120
41021112310213231
510010031010334
6322042331153
742332641260
oct11126644755
93152730646
101230719469
11581788831
122a41b9ab9
13167c8ba95
14b9648cd7
15730a7949
hex495b49ed

1230719469 has 32 divisors (see below), whose sum is σ = 1950541824. Its totient is φ = 675622080.

The previous prime is 1230719431. The next prime is 1230719507. The reversal of 1230719469 is 9649170321.

It is an interprime number because it is at equal distance from previous prime (1230719431) and next prime (1230719507).

It is not a de Polignac number, because 1230719469 - 223 = 1222330861 is a prime.

It is a super-2 number, since 2×12307194692 = 3029340822751283922, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1230719469.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230719069) 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 31 ways as a sum of consecutive naturals, for example, 43912 + ... + 66254.

It is an arithmetic number, because the mean of its divisors is an integer number (60954432).

Almost surely, 21230719469 is an apocalyptic number.

It is an amenable number.

1230719469 is a deficient number, since it is larger than the sum of its proper divisors (719822355).

1230719469 is a wasteful number, since it uses less digits than its factorization.

1230719469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22457.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 1230719469 is about 35081.6115507826. The cubic root of 1230719469 is about 1071.6501364998.

The spelling of 1230719469 in words is "one billion, two hundred thirty million, seven hundred nineteen thousand, four hundred sixty-nine".

Divisors: 1 3 7 21 43 61 129 183 301 427 903 1281 2623 7869 18361 22343 55083 67029 156401 469203 960749 1362923 2882247 4088769 6725243 9540461 20175729 28621383 58605689 175817067 410239823 1230719469