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1230304420340 = 225371662573541
BaseRepresentation
bin10001111001110011110…
…110111010000111110100
311100121122000211011112222
4101321303312322013310
5130124130412422330
62341105525301512
7154613043011522
oct21716366720764
94317560734488
101230304420340
11434850853686
1217a536564898
138c02ba67888
1443793177312
152200a3e80e5
hex11e73dba1f4

1230304420340 has 24 divisors (see below), whose sum is σ = 2653467373032. Its totient is φ = 478821179520.

The previous prime is 1230304420339. The next prime is 1230304420349. The reversal of 1230304420340 is 430244030321.

It can be written as a sum of positive squares in 4 ways, for example, as 96390379024 + 1133914041316 = 310468^2 + 1064854^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230304420349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 831286031 + ... + 831287510.

It is an arithmetic number, because the mean of its divisors is an integer number (110561140543).

Almost surely, 21230304420340 is an apocalyptic number.

1230304420340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1230304420340 is an abundant number, since it is smaller than the sum of its proper divisors (1423162952692).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1230304420340 is a wasteful number, since it uses less digits than its factorization.

1230304420340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1662573587 (or 1662573585 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 1230304420340 its reverse (430244030321), we get a palindrome (1660548450661).

The spelling of 1230304420340 in words is "one trillion, two hundred thirty billion, three hundred four million, four hundred twenty thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 37 74 148 185 370 740 1662573541 3325147082 6650294164 8312867705 16625735410 33251470820 61515221017 123030442034 246060884068 307576105085 615152210170 1230304420340