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30343421251 = 1113212191757
BaseRepresentation
bin11100010000100110…
…111101110101000011
32220022200111111202201
4130100212331311003
5444120403440001
621534540454031
72122636552663
oct342046756503
986280444681
1030343421251
1111961085550
125a69b4a317
132b27586a40
14167bcc21a3
15bc8d63501
hex7109bdd43

30343421251 has 8 divisors (see below), whose sum is σ = 35648215344. Its totient is φ = 25463010720.

The previous prime is 30343421233. The next prime is 30343421321. The reversal of 30343421251 is 15212434303.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30343421251 - 27 = 30343421123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30343421851) 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, 106095736 + ... + 106096021.

It is an arithmetic number, because the mean of its divisors is an integer number (4456026918).

Almost surely, 230343421251 is an apocalyptic number.

30343421251 is a deficient number, since it is larger than the sum of its proper divisors (5304794093).

30343421251 is a wasteful number, since it uses less digits than its factorization.

30343421251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212191781.

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 30343421251 its reverse (15212434303), we get a palindrome (45555855554).

The spelling of 30343421251 in words is "thirty billion, three hundred forty-three million, four hundred twenty-one thousand, two hundred fifty-one".

Divisors: 1 11 13 143 212191757 2334109327 2758492841 30343421251