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258872278853 = 1729761511669
BaseRepresentation
bin1111000100010111111…
…1010111111101000101
3220202012020212022122202
43301011333113331011
513220132300410403
6314531351204245
724463045030646
oct3610577277505
9822166768582
10258872278853
119a87271a711
1242207976685
131b547240a36
14c75ac9b6cd
156b01bb7688
hex3c45fd7f45

258872278853 has 8 divisors (see below), whose sum is σ = 274109805720. Its totient is φ = 243635834880.

The previous prime is 258872278843. The next prime is 258872278867. The reversal of 258872278853 is 358872278852.

It can be written as a sum of positive squares in 4 ways, for example, as 87569830084 + 171302448769 = 295922^2 + 413887^2 .

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 258872278853 - 212 = 258872274757 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 258872278853.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258872278843) 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, 250103 + ... + 761771.

It is an arithmetic number, because the mean of its divisors is an integer number (34263725715).

Almost surely, 2258872278853 is an apocalyptic number.

It is an amenable number.

258872278853 is a deficient number, since it is larger than the sum of its proper divisors (15237526867).

258872278853 is a wasteful number, since it uses less digits than its factorization.

258872278853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541447.

The product of its digits is 120422400, while the sum is 65.

Subtracting 258872278853 from its reverse (358872278852), we obtain a palindrome (99999999999).

The spelling of 258872278853 in words is "two hundred fifty-eight billion, eight hundred seventy-two million, two hundred seventy-eight thousand, eight hundred fifty-three".

Divisors: 1 17 29761 505937 511669 8698373 15227781109 258872278853