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52420333 = 717440507
BaseRepresentation
bin1100011111110…
…1111011101101
310122122020011211
43013331323231
5101404422313
65111314421
71204364650
oct307757355
9118566154
1052420333
1127654199
121567ba11
13ab24c64
146d67897
154906e3d
hex31fdeed

52420333 has 8 divisors (see below), whose sum is σ = 63433152. Its totient is φ = 42288576.

The previous prime is 52420307. The next prime is 52420363. The reversal of 52420333 is 33302425.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-52420333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52420363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220135 + ... + 220372.

It is an arithmetic number, because the mean of its divisors is an integer number (7929144).

Almost surely, 252420333 is an apocalyptic number.

It is an amenable number.

52420333 is a deficient number, since it is larger than the sum of its proper divisors (11012819).

52420333 is a wasteful number, since it uses less digits than its factorization.

52420333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440531.

The product of its (nonzero) digits is 2160, while the sum is 22.

The square root of 52420333 is about 7240.1887406338. The cubic root of 52420333 is about 374.2541215727.

Adding to 52420333 its reverse (33302425), we get a palindrome (85722758).

The spelling of 52420333 in words is "fifty-two million, four hundred twenty thousand, three hundred thirty-three".

Divisors: 1 7 17 119 440507 3083549 7488619 52420333