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254133400431220 = 22512706670021561
BaseRepresentation
bin111001110010001000001011…
…000011101110101001110100
31020022210220201121221001222021
4321302020023003232221310
5231302210201002244340
62300255134503042524
7104346350400021052
oct7162101303565164
91208726647831867
10254133400431220
1173a7a408332472
1224604909740444
13aba58a4cc928b
1446a819d4b71d2
151e5a8d630ce4a
hexe7220b0eea74

254133400431220 has 12 divisors (see below), whose sum is σ = 533680140905604. Its totient is φ = 101653360172480.

The previous prime is 254133400431149. The next prime is 254133400431347. The reversal of 254133400431220 is 22134004331452.

It can be written as a sum of positive squares in 2 ways, for example, as 56945919247504 + 197187481183716 = 7546252^2 + 14042346^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6353335010761 + ... + 6353335010800.

It is an arithmetic number, because the mean of its divisors is an integer number (44473345075467).

Almost surely, 2254133400431220 is an apocalyptic number.

254133400431220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

254133400431220 is an abundant number, since it is smaller than the sum of its proper divisors (279546740474384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

254133400431220 is a wasteful number, since it uses less digits than its factorization.

254133400431220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12706670021570 (or 12706670021568 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 34.

Adding to 254133400431220 its reverse (22134004331452), we get a palindrome (276267404762672).

The spelling of 254133400431220 in words is "two hundred fifty-four trillion, one hundred thirty-three billion, four hundred million, four hundred thirty-one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 12706670021561 25413340043122 50826680086244 63533350107805 127066700215610 254133400431220