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253313434 = 211192920897
BaseRepresentation
bin11110001100101…
…00000110011010
3122122122122201001
433012110012122
51004322012214
641045215214
76164062063
oct1706240632
9578578631
10253313434
1111aa97150
1270a0150a
134063290a
14258dd56a
151738ac74
hexf19419a

253313434 has 32 divisors (see below), whose sum is σ = 451396800. Its totient is φ = 105315840.

The previous prime is 253313407. The next prime is 253313441. The reversal of 253313434 is 434313352.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1674 + ... + 22570.

It is an arithmetic number, because the mean of its divisors is an integer number (14106150).

Almost surely, 2253313434 is an apocalyptic number.

253313434 is a deficient number, since it is larger than the sum of its proper divisors (198083366).

253313434 is a wasteful number, since it uses less digits than its factorization.

253313434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20958.

The product of its digits is 12960, while the sum is 28.

The square root of 253313434 is about 15915.8233842928. The cubic root of 253313434 is about 632.7314293164.

Adding to 253313434 its reverse (434313352), we get a palindrome (687626786).

The spelling of 253313434 in words is "two hundred fifty-three million, three hundred thirteen thousand, four hundred thirty-four".

Divisors: 1 2 11 19 22 29 38 58 209 319 418 551 638 1102 6061 12122 20897 41794 229867 397043 459734 606013 794086 1212026 4367473 6666143 8734946 11514247 13332286 23028494 126656717 253313434