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253034307 = 33173117783
BaseRepresentation
bin11110001010011…
…11111101000011
3122122010110211000
433011033331003
51004234044212
641035223043
76161520231
oct1705177503
9578113730
10253034307
1111a916469
12708a7a83
1340565856
1425869951
15173331dc
hexf14ff43

253034307 has 32 divisors (see below), whose sum is σ = 409743360. Its totient is φ = 153636480.

The previous prime is 253034269. The next prime is 253034311. The reversal of 253034307 is 703430352.

It is not a de Polignac number, because 253034307 - 27 = 253034179 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 (253034347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5338 + ... + 23120.

It is an arithmetic number, because the mean of its divisors is an integer number (12804480).

Almost surely, 2253034307 is an apocalyptic number.

253034307 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

253034307 is a deficient number, since it is larger than the sum of its proper divisors (156709053).

253034307 is a wasteful number, since it uses less digits than its factorization.

253034307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17840 (or 17834 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 27.

The square root of 253034307 is about 15907.0521153355. The cubic root of 253034307 is about 632.4989408763.

Adding to 253034307 its reverse (703430352), we get a palindrome (956464659).

The spelling of 253034307 in words is "two hundred fifty-three million, thirty-four thousand, three hundred seven".

Divisors: 1 3 9 17 27 31 51 93 153 279 459 527 837 1581 4743 14229 17783 53349 160047 302311 480141 551273 906933 1653819 2720799 4961457 8162397 9371641 14884371 28114923 84344769 253034307