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253034523 = 3472319403
BaseRepresentation
bin11110001010100…
…00000000011011
3122122010111010000
433011100000123
51004234101043
641035224043
76161520660
oct1705200033
9578114100
10253034523
1111a916645
12708a8023
1340565991
1425869a67
15173332d3
hexf15001b

253034523 has 40 divisors (see below), whose sum is σ = 450793728. Its totient is φ = 138297456.

The previous prime is 253034513. The next prime is 253034629. The reversal of 253034523 is 325430352.

It is not a de Polignac number, because 253034523 - 29 = 253034011 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (253034503) 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 39 ways as a sum of consecutive naturals, for example, 3340 + ... + 22742.

Almost surely, 2253034523 is an apocalyptic number.

253034523 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

253034523 is a deficient number, since it is larger than the sum of its proper divisors (197759205).

253034523 is a wasteful number, since it uses less digits than its factorization.

253034523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19445 (or 19436 counting only the distinct ones).

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

The square root of 253034523 is about 15907.0589047756. The cubic root of 253034523 is about 632.4991208516.

Adding to 253034523 its reverse (325430352), we get a palindrome (578464875).

The spelling of 253034523 in words is "two hundred fifty-three million, thirty-four thousand, five hundred twenty-three".

Divisors: 1 3 7 9 21 23 27 63 69 81 161 189 207 483 567 621 1449 1863 4347 13041 19403 58209 135821 174627 407463 446269 523881 1222389 1338807 1571643 3123883 3667167 4016421 9371649 11001501 12049263 28114947 36147789 84344841 253034523