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52420353 = 317473451
BaseRepresentation
bin1100011111110…
…1111100000001
310122122020012120
43013331330001
5101404422403
65111314453
71204365006
oct307757401
9118566176
1052420353
1127654207
121567ba29
13ab24c7b
146d678ad
154906e53
hex31fdf01

52420353 has 4 divisors (see below), whose sum is σ = 69893808. Its totient is φ = 34946900.

The previous prime is 52420307. The next prime is 52420363. The reversal of 52420353 is 35302425.

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 a de Polignac number, because none of the positive numbers 2k-52420353 is a prime.

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8736723 + ... + 8736728.

It is an arithmetic number, because the mean of its divisors is an integer number (17473452).

Almost surely, 252420353 is an apocalyptic number.

It is an amenable number.

52420353 is a deficient number, since it is larger than the sum of its proper divisors (17473455).

52420353 is a wasteful number, since it uses less digits than its factorization.

52420353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17473454.

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 52420353 is about 7240.1901218131. The cubic root of 52420353 is about 374.2541691693.

Adding to 52420353 its reverse (35302425), we get a palindrome (87722778).

The spelling of 52420353 in words is "fifty-two million, four hundred twenty thousand, three hundred fifty-three".

Divisors: 1 3 17473451 52420353