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255102144 = 2631143532
BaseRepresentation
bin11110011010010…
…00110011000000
3122210000112100120
433031020303000
51010301232034
641151420240
76215222013
oct1715106300
9583015316
10255102144
11120aa9020
1271524680
1340b0ab1b
1425c4737a
15175e0c49
hexf348cc0

255102144 has 168 divisors, whose sum is σ = 767925312. Its totient is φ = 74081280.

The previous prime is 255102121. The next prime is 255102149. The reversal of 255102144 is 441201552.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255102149) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4813222 + ... + 4813274.

It is an arithmetic number, because the mean of its divisors is an integer number (4570984).

Almost surely, 2255102144 is an apocalyptic number.

255102144 is a gapful number since it is divisible by the number (24) 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 255102144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (383962656).

255102144 is an abundant number, since it is smaller than the sum of its proper divisors (512823168).

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

255102144 is a wasteful number, since it uses less digits than its factorization.

255102144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175 (or 112 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 255102144 is about 15971.9173551581. The cubic root of 255102144 is about 634.2172296112.

Adding to 255102144 its reverse (441201552), we get a palindrome (696303696).

The spelling of 255102144 in words is "two hundred fifty-five million, one hundred two thousand, one hundred forty-four".