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71052629 = 671060487
BaseRepresentation
bin1000011110000…
…10110101010101
311221200211212212
410033002311111
5121142141004
611014523205
71521636344
oct417026525
9157624785
1071052629
113711a98a
121b966505
131194999b
149617b5b
15638796e
hex43c2d55

71052629 has 4 divisors (see below), whose sum is σ = 72113184. Its totient is φ = 69992076.

The previous prime is 71052623. The next prime is 71052637. The reversal of 71052629 is 92625017.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 71052629 - 24 = 71052613 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 71052595 and 71052604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71052623) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 530177 + ... + 530310.

It is an arithmetic number, because the mean of its divisors is an integer number (18028296).

Almost surely, 271052629 is an apocalyptic number.

It is an amenable number.

71052629 is a deficient number, since it is larger than the sum of its proper divisors (1060555).

71052629 is a wasteful number, since it uses less digits than its factorization.

71052629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060554.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 71052629 is about 8429.2721512596. The cubic root of 71052629 is about 414.1840628639.

The spelling of 71052629 in words is "seventy-one million, fifty-two thousand, six hundred twenty-nine".

Divisors: 1 67 1060487 71052629