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255031011 = 346746993
BaseRepresentation
bin11110011001101…
…11011011100011
3122202212220210000
433030313123203
51010241443021
641150111043
76214504434
oct1714673343
9582786700
10255031011
11120a5a634
12714ab483
1340ab4631
1425c2948b
15175c9b26
hexf3376e3

255031011 has 20 divisors (see below), whose sum is σ = 386666632. Its totient is φ = 167479488.

The previous prime is 255030953. The next prime is 255031027. The reversal of 255031011 is 110130552.

It is not a de Polignac number, because 255031011 - 29 = 255030499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255031081) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 18070 + ... + 28923.

Almost surely, 2255031011 is an apocalyptic number.

255031011 is a deficient number, since it is larger than the sum of its proper divisors (131635621).

255031011 is an equidigital number, since it uses as much as digits as its factorization.

255031011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47072 (or 47063 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 255031011 is about 15969.6903852266. The cubic root of 255031011 is about 634.1582754902.

Adding to 255031011 its reverse (110130552), we get a palindrome (365161563).

The spelling of 255031011 in words is "two hundred fifty-five million, thirty-one thousand, eleven".

Divisors: 1 3 9 27 67 81 201 603 1809 5427 46993 140979 422937 1268811 3148531 3806433 9445593 28336779 85010337 255031011