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52030111 = 727913441
BaseRepresentation
bin1100011001111…
…0101010011111
310121220101220011
43012132222133
5101304430421
65055104051
71201151200
oct306365237
9117811804
1052030111
1127407aa1
1215512027
13aa19463
146ca55a7
15487b4e1
hex319ea9f

52030111 has 12 divisors (see below), whose sum is σ = 61295520. Its totient is φ = 44029440.

The previous prime is 52030087. The next prime is 52030157. The reversal of 52030111 is 11103025.

It is not a de Polignac number, because 52030111 - 211 = 52028063 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52030091 and 52030100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52030171) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2850 + ... + 10591.

It is an arithmetic number, because the mean of its divisors is an integer number (5107960).

Almost surely, 252030111 is an apocalyptic number.

52030111 is a deficient number, since it is larger than the sum of its proper divisors (9265409).

52030111 is a wasteful number, since it uses less digits than its factorization.

52030111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13534 (or 13527 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 52030111 is about 7213.1900709741. The cubic root of 52030111 is about 373.3231464234.

Adding to 52030111 its reverse (11103025), we get a palindrome (63133136).

The spelling of 52030111 in words is "fifty-two million, thirty thousand, one hundred eleven".

Divisors: 1 7 49 79 553 3871 13441 94087 658609 1061839 7432873 52030111