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52030861 = 592293851
BaseRepresentation
bin1100011001111…
…0110110001101
310121220102220221
43012132312031
5101304441421
65055111341
71201153321
oct306366615
9117812827
1052030861
1127408613
1215512551
13aa198bc
146ca5981
15487b841
hex319ed8d

52030861 has 8 divisors (see below), whose sum is σ = 53157600. Its totient is φ = 50912400.

The previous prime is 52030841. The next prime is 52030877. The reversal of 52030861 is 16803025.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 52030861 - 27 = 52030733 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 (52030801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11586 + ... + 15436.

It is an arithmetic number, because the mean of its divisors is an integer number (6644700).

Almost surely, 252030861 is an apocalyptic number.

It is an amenable number.

52030861 is a deficient number, since it is larger than the sum of its proper divisors (1126739).

52030861 is a wasteful number, since it uses less digits than its factorization.

52030861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4139.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 52030861 is about 7213.2420588803. The cubic root of 52030861 is about 373.3249401989.

Adding to 52030861 its reverse (16803025), we get a palindrome (68833886).

The spelling of 52030861 in words is "fifty-two million, thirty thousand, eight hundred sixty-one".

Divisors: 1 59 229 3851 13511 227209 881879 52030861