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52420801 = 331158371
BaseRepresentation
bin1100011111111…
…0000011000001
310122122020211011
43013332003001
5101404431201
65111320521
71204366216
oct307760301
9118566734
1052420801
1127654584
1215680141
13ab25234
146d67b0d
154907151
hex31fe0c1

52420801 has 4 divisors (see below), whose sum is σ = 52579504. Its totient is φ = 52262100.

The previous prime is 52420793. The next prime is 52420807. The reversal of 52420801 is 10802425.

52420801 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 52420801 - 23 = 52420793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52420807) 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, 78855 + ... + 79516.

It is an arithmetic number, because the mean of its divisors is an integer number (13144876).

Almost surely, 252420801 is an apocalyptic number.

It is an amenable number.

52420801 is a deficient number, since it is larger than the sum of its proper divisors (158703).

52420801 is a wasteful number, since it uses less digits than its factorization.

52420801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158702.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 52420801 is about 7240.2210601611. The cubic root of 52420801 is about 374.2552353289.

The spelling of 52420801 in words is "fifty-two million, four hundred twenty thousand, eight hundred one".

Divisors: 1 331 158371 52420801