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34427505 = 357327881
BaseRepresentation
bin1000001101010…
…1001001110001
32101210002122210
42003111021301
532303140010
63225522333
7565425510
oct203251161
971702583
1034427505
1118484992
12b6433a9
137195308
144802677
153050b20
hex20d5271

34427505 has 16 divisors (see below), whose sum is σ = 62953344. Its totient is φ = 15738240.

The previous prime is 34427483. The next prime is 34427509. The reversal of 34427505 is 50572443.

It is not a de Polignac number, because 34427505 - 25 = 34427473 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (34427509) 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 15 ways as a sum of consecutive naturals, for example, 163836 + ... + 164045.

It is an arithmetic number, because the mean of its divisors is an integer number (3934584).

Almost surely, 234427505 is an apocalyptic number.

34427505 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

34427505 is a deficient number, since it is larger than the sum of its proper divisors (28525839).

34427505 is a wasteful number, since it uses less digits than its factorization.

34427505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327896.

The product of its (nonzero) digits is 16800, while the sum is 30.

The square root of 34427505 is about 5867.4956327210. The cubic root of 34427505 is about 325.3133230838.

Adding to 34427505 its reverse (50572443), we get a palindrome (84999948).

The spelling of 34427505 in words is "thirty-four million, four hundred twenty-seven thousand, five hundred five".

Divisors: 1 3 5 7 15 21 35 105 327881 983643 1639405 2295167 4918215 6885501 11475835 34427505