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245250000401 = 725005102049
BaseRepresentation
bin1110010001101000001…
…0100000011000010001
3212110000220010212122012
43210122002200120101
513004233000003101
6304355530352305
723501344415300
oct3443202403021
9773026125565
10245250000401
119501226024a
123b64588b695
131a185c72c43
14bc27a2a437
1565a5ce6bbb
hex391a0a0611

245250000401 has 6 divisors (see below), whose sum is σ = 285290816850. Its totient is φ = 210214286016.

The previous prime is 245250000379. The next prime is 245250000419. The reversal of 245250000401 is 104000052542.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 222218902801 + 23031097600 = 471401^2 + 151760^2 .

It is not a de Polignac number, because 245250000401 - 26 = 245250000337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245250000461) 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 5 ways as a sum of consecutive naturals, for example, 2502550976 + ... + 2502551073.

It is an arithmetic number, because the mean of its divisors is an integer number (47548469475).

Almost surely, 2245250000401 is an apocalyptic number.

It is an amenable number.

245250000401 is a deficient number, since it is larger than the sum of its proper divisors (40040816449).

245250000401 is an equidigital number, since it uses as much as digits as its factorization.

245250000401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5005102063 (or 5005102056 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

Adding to 245250000401 its reverse (104000052542), we get a palindrome (349250052943).

The spelling of 245250000401 in words is "two hundred forty-five billion, two hundred fifty million, four hundred one", and thus it is an aban number.

Divisors: 1 7 49 5005102049 35035714343 245250000401