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254124320 = 2553115107
BaseRepresentation
bin11110010010110…
…10000100100000
3122201011212000212
433021122010200
51010023434240
641114433252
76204010142
oct1711320440
9581155025
10254124320
111204a03aa
1271132828
1340857a28
1425a70c92
151749b165
hexf25a120

254124320 has 48 divisors (see below), whose sum is σ = 602417088. Its totient is φ = 101303040.

The previous prime is 254124319. The next prime is 254124323. The reversal of 254124320 is 23421452.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (254124323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47207 + ... + 52313.

It is an arithmetic number, because the mean of its divisors is an integer number (12550356).

Almost surely, 2254124320 is an apocalyptic number.

254124320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 254124320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (301208544).

254124320 is an abundant number, since it is smaller than the sum of its proper divisors (348292768).

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

254124320 is a wasteful number, since it uses less digits than its factorization.

254124320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5433 (or 5425 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 254124320 is about 15941.2772386657. The cubic root of 254124320 is about 633.4058593460.

Adding to 254124320 its reverse (23421452), we get a palindrome (277545772).

The spelling of 254124320 in words is "two hundred fifty-four million, one hundred twenty-four thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 311 622 1244 1555 2488 3110 4976 5107 6220 9952 10214 12440 20428 24880 25535 40856 49760 51070 81712 102140 163424 204280 408560 817120 1588277 3176554 6353108 7941385 12706216 15882770 25412432 31765540 50824864 63531080 127062160 254124320