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253230435 = 33510917209
BaseRepresentation
bin11110001011111…
…11110101100011
3122122111102212000
433011333311203
51004311333220
641043335043
76163265103
oct1705776543
9578442760
10253230435
1111aa3a857
1270981483
1340603bc3
14258bb203
1517371390
hexf17fd63

253230435 has 32 divisors (see below), whose sum is σ = 454344000. Its totient is φ = 133809408.

The previous prime is 253230433. The next prime is 253230451. The reversal of 253230435 is 534032352.

It is not a de Polignac number, because 253230435 - 21 = 253230433 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 253230399 and 253230408.

It is not an unprimeable number, because it can be changed into a prime (253230433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6111 + ... + 23319.

It is an arithmetic number, because the mean of its divisors is an integer number (14198250).

Almost surely, 2253230435 is an apocalyptic number.

253230435 is a deficient number, since it is larger than the sum of its proper divisors (201113565).

253230435 is a wasteful number, since it uses less digits than its factorization.

253230435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17332 (or 17326 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 27.

The square root of 253230435 is about 15913.2157340998. The cubic root of 253230435 is about 632.6623162394.

Adding to 253230435 its reverse (534032352), we get a palindrome (787262787).

The spelling of 253230435 in words is "two hundred fifty-three million, two hundred thirty thousand, four hundred thirty-five".

Divisors: 1 3 5 9 15 27 45 109 135 327 545 981 1635 2943 4905 14715 17209 51627 86045 154881 258135 464643 774405 1875781 2323215 5627343 9378905 16882029 28136715 50646087 84410145 253230435