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245323216030 = 25313721388249
BaseRepresentation
bin1110010001111001100…
…1110011010010011110
3212110012222220121121011
43210132121303102132
513004410220403110
6304411103525434
723503223634034
oct3443631632236
9773188817534
10245323216030
119504a618232
123b6662b987a
131a1981992b9
14bc33648554
1565ac45a48a
hex391e67349e

245323216030 has 32 divisors (see below), whose sum is σ = 468146016000. Its totient is φ = 92397231360.

The previous prime is 245323216003. The next prime is 245323216031. The reversal of 245323216030 is 30612323542.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 245323215983 and 245323216001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245323216031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10682655 + ... + 10705594.

It is an arithmetic number, because the mean of its divisors is an integer number (14629563000).

Almost surely, 2245323216030 is an apocalyptic number.

245323216030 is a deficient number, since it is larger than the sum of its proper divisors (222822799970).

245323216030 is a wasteful number, since it uses less digits than its factorization.

245323216030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21388324.

The product of its (nonzero) digits is 25920, while the sum is 31.

Adding to 245323216030 its reverse (30612323542), we get a palindrome (275935539572).

The spelling of 245323216030 in words is "two hundred forty-five billion, three hundred twenty-three million, two hundred sixteen thousand, thirty".

Divisors: 1 2 5 10 31 37 62 74 155 185 310 370 1147 2294 5735 11470 21388249 42776498 106941245 213882490 663035719 791365213 1326071438 1582730426 3315178595 3956826065 6630357190 7913652130 24532321603 49064643206 122661608015 245323216030