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52992109 = 67790927
BaseRepresentation
bin1100101000100…
…1100001101101
310200201021111201
43022021201231
5102031221414
65131445501
71212265642
oct312114155
9120637451
1052992109
1127a04835
12158b6891
13ac952a1
147075dc9
1549bb574
hex328986d

52992109 has 4 divisors (see below), whose sum is σ = 53783104. Its totient is φ = 52201116.

The previous prime is 52992101. The next prime is 52992127. The reversal of 52992109 is 90129925.

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 52992109 - 23 = 52992101 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 (52992101) 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, 395397 + ... + 395530.

It is an arithmetic number, because the mean of its divisors is an integer number (13445776).

Almost surely, 252992109 is an apocalyptic number.

It is an amenable number.

52992109 is a deficient number, since it is larger than the sum of its proper divisors (790995).

52992109 is an equidigital number, since it uses as much as digits as its factorization.

52992109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790994.

The product of its (nonzero) digits is 14580, while the sum is 37.

The square root of 52992109 is about 7279.5679130014. The cubic root of 52992109 is about 375.6099324523.

The spelling of 52992109 in words is "fifty-two million, nine hundred ninety-two thousand, one hundred nine".

Divisors: 1 67 790927 52992109