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245120550255 = 3257778160477
BaseRepresentation
bin1110010001001001010…
…0101100010101101111
3212102200212120010102100
43210102110230111233
513004001330102010
6304335024030143
723465213204520
oct3442224542557
9772625503370
10245120550255
1194a56184459
123b60a462353
131a1651ba819
14bc14770847
1565997762c0
hex391252c56f

245120550255 has 24 divisors (see below), whose sum is σ = 485572138272. Its totient is φ = 112055108544.

The previous prime is 245120550253. The next prime is 245120550281. The reversal of 245120550255 is 552055021542.

245120550255 is a `hidden beast` number, since 2 + 4 + 51 + 2 + 0 + 550 + 2 + 55 = 666.

245120550255 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 245120550255 - 21 = 245120550253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245120550251) 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 in 23 ways as a sum of consecutive naturals, for example, 389079924 + ... + 389080553.

It is an arithmetic number, because the mean of its divisors is an integer number (20232172428).

Almost surely, 2245120550255 is an apocalyptic number.

245120550255 is a deficient number, since it is larger than the sum of its proper divisors (240451588017).

245120550255 is a wasteful number, since it uses less digits than its factorization.

245120550255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778160495 (or 778160492 counting only the distinct ones).

The product of its (nonzero) digits is 100000, while the sum is 36.

Adding to 245120550255 its reverse (552055021542), we get a palindrome (797175571797).

The spelling of 245120550255 in words is "two hundred forty-five billion, one hundred twenty million, five hundred fifty thousand, two hundred fifty-five".

Divisors: 1 3 5 7 9 15 21 35 45 63 105 315 778160477 2334481431 3890802385 5447123339 7003444293 11672407155 16341370017 27235616695 35017221465 49024110051 81706850085 245120550255