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245200032481 is a prime number
BaseRepresentation
bin1110010001011100001…
…1111001001011100001
3212102220102010020112111
43210113003321023201
513004132202014411
6304350543355321
723500166613235
oct3442703711341
9772812106474
10245200032481
1194a97031648
123b630bb2b41
131a1787c9321
14bc211405c5
1565a1726721
hex39170f92e1

245200032481 has 2 divisors, whose sum is σ = 245200032482. Its totient is φ = 245200032480.

The previous prime is 245200032479. The next prime is 245200032487. The reversal of 245200032481 is 184230002542.

245200032481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 241537846225 + 3662186256 = 491465^2 + 60516^2 .

It is a cyclic number.

It is not a de Polignac number, because 245200032481 - 21 = 245200032479 is a prime.

It is a super-2 number, since 2×2452000324812 (a number of 24 digits) contains 22 as substring.

Together with 245200032479, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (245200032487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122600016240 + 122600016241.

It is an arithmetic number, because the mean of its divisors is an integer number (122600016241).

Almost surely, 2245200032481 is an apocalyptic number.

It is an amenable number.

245200032481 is a deficient number, since it is larger than the sum of its proper divisors (1).

245200032481 is an equidigital number, since it uses as much as digits as its factorization.

245200032481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15360, while the sum is 31.

The spelling of 245200032481 in words is "two hundred forty-five billion, two hundred million, thirty-two thousand, four hundred eighty-one".