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34254721 = 314126951
BaseRepresentation
bin1000001010101…
…0111110000001
32101110022122101
42002222332001
532232122341
63222110401
7564105664
oct202527601
971408571
1034254721
1118377096
12b57b401
137134787
1447996db
153019831
hex20aaf81

34254721 has 8 divisors (see below), whose sum is σ = 36223488. Its totient is φ = 32340000.

The previous prime is 34254719. The next prime is 34254749. The reversal of 34254721 is 12745243.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 34254721 - 21 = 34254719 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 34254721.

It is not an unprimeable number, because it can be changed into a prime (34254761) 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 7 ways as a sum of consecutive naturals, for example, 12205 + ... + 14746.

It is an arithmetic number, because the mean of its divisors is an integer number (4527936).

Almost surely, 234254721 is an apocalyptic number.

34254721 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

34254721 is a deficient number, since it is larger than the sum of its proper divisors (1968767).

34254721 is a wasteful number, since it uses less digits than its factorization.

34254721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27023.

The product of its digits is 6720, while the sum is 28.

The square root of 34254721 is about 5852.7532837119. The cubic root of 34254721 is about 324.7681849869.

Adding to 34254721 its reverse (12745243), we get a palindrome (46999964).

The spelling of 34254721 in words is "thirty-four million, two hundred fifty-four thousand, seven hundred twenty-one".

Divisors: 1 31 41 1271 26951 835481 1104991 34254721