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255250330 = 25241105913
BaseRepresentation
bin11110011011011…
…00111110011010
3122210022001121221
433031230332122
51010321002310
641154522254
76216410026
oct1715547632
9583261557
10255250330
1112109a395
127159638a
1340b603ca
1425c85386
151761eada
hexf36cf9a

255250330 has 16 divisors (see below), whose sum is σ = 461361384. Its totient is φ = 101675520.

The previous prime is 255250321. The next prime is 255250337. The reversal of 255250330 is 33052552.

It can be written as a sum of positive squares in 4 ways, for example, as 236144689 + 19105641 = 15367^2 + 4371^2 .

It is a junction number, because it is equal to n+sod(n) for n = 255250295 and 255250304.

It is not an unprimeable number, because it can be changed into a prime (255250337) 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, 50547 + ... + 55366.

Almost surely, 2255250330 is an apocalyptic number.

255250330 is a deficient number, since it is larger than the sum of its proper divisors (206111054).

255250330 is a wasteful number, since it uses less digits than its factorization.

255250330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106161.

The product of its (nonzero) digits is 4500, while the sum is 25.

The square root of 255250330 is about 15976.5556363066. Note that the first 3 decimals coincide. The cubic root of 255250330 is about 634.3400090870.

The spelling of 255250330 in words is "two hundred fifty-five million, two hundred fifty thousand, three hundred thirty".

Divisors: 1 2 5 10 241 482 1205 2410 105913 211826 529565 1059130 25525033 51050066 127625165 255250330