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30245240425 = 522921438537
BaseRepresentation
bin11100001010110000…
…011011111001101001
32220001211202101222211
4130022300123321221
5443420240143200
621521112245121
72120335205341
oct341260337151
986054671884
1030245240425
1111910716874
125a410a07a1
132b1012c28a
14166cc45d21
15bc041caba
hex70ac1be69

30245240425 has 18 divisors (see below), whose sum is σ = 38841964538. Its totient is φ = 23361824640.

The previous prime is 30245240407. The next prime is 30245240437. The reversal of 30245240425 is 52404254203.

It can be written as a sum of positive squares in 9 ways, for example, as 4770526761 + 25474713664 = 69069^2 + 159608^2 .

It is not a de Polignac number, because 30245240425 - 219 = 30244716137 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 698244 + ... + 740293.

Almost surely, 230245240425 is an apocalyptic number.

It is an amenable number.

30245240425 is a deficient number, since it is larger than the sum of its proper divisors (8596724113).

30245240425 is a wasteful number, since it uses less digits than its factorization.

30245240425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1438605 (or 1438571 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 31.

Adding to 30245240425 its reverse (52404254203), we get a palindrome (82649494628).

The spelling of 30245240425 in words is "thirty billion, two hundred forty-five million, two hundred forty thousand, four hundred twenty-five".

Divisors: 1 5 25 29 145 725 841 4205 21025 1438537 7192685 35963425 41717573 208587865 1042939325 1209809617 6049048085 30245240425