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52399001 = 444711783
BaseRepresentation
bin1100011111100…
…0101110011001
310122121010220202
43013320232121
5101403232001
65111031545
71204245524
oct307705631
9118533822
1052399001
112763a166
121566b5b5
13ab18335
146d5dbbb
15490096b
hex31f8b99

52399001 has 4 divisors (see below), whose sum is σ = 52415232. Its totient is φ = 52382772.

The previous prime is 52398989. The next prime is 52399007. The reversal of 52399001 is 10099325.

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-52399001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52399007) 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, 1445 + ... + 10338.

It is an arithmetic number, because the mean of its divisors is an integer number (13103808).

Almost surely, 252399001 is an apocalyptic number.

It is an amenable number.

52399001 is a deficient number, since it is larger than the sum of its proper divisors (16231).

52399001 is a wasteful number, since it uses less digits than its factorization.

52399001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16230.

The product of its (nonzero) digits is 2430, while the sum is 29.

The square root of 52399001 is about 7238.7154247145. The cubic root of 52399001 is about 374.2033481949.

The spelling of 52399001 in words is "fifty-two million, three hundred ninety-nine thousand, one".

Divisors: 1 4447 11783 52399001