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1230305352 = 233371385479
BaseRepresentation
bin100100101010100…
…1111100001001000
310011202000222122220
41021111033201020
510004424232402
6322025414040
742326265033
oct11125174110
93152028586
101230305352
11581525691
122a403a320
13167b75443
14b957c01a
1573024dbc
hex4954f848

1230305352 has 32 divisors (see below), whose sum is σ = 3158894400. Its totient is φ = 399017664.

The previous prime is 1230305311. The next prime is 1230305353. The reversal of 1230305352 is 2535030321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (1230305353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 691852 + ... + 693627.

It is an arithmetic number, because the mean of its divisors is an integer number (98715450).

Almost surely, 21230305352 is an apocalyptic number.

1230305352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1230305352 is an abundant number, since it is smaller than the sum of its proper divisors (1928589048).

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

1230305352 is a wasteful number, since it uses less digits than its factorization.

1230305352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1385525 (or 1385521 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 24.

The square root of 1230305352 is about 35075.7088595512. The cubic root of 1230305352 is about 1071.5299254265.

Adding to 1230305352 its reverse (2535030321), we get a palindrome (3765335673).

The spelling of 1230305352 in words is "one billion, two hundred thirty million, three hundred five thousand, three hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 24 37 74 111 148 222 296 444 888 1385479 2770958 4156437 5541916 8312874 11083832 16625748 33251496 51262723 102525446 153788169 205050892 307576338 410101784 615152676 1230305352