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52109017 = 53983189
BaseRepresentation
bin1100011011000…
…1111011011001
310122001102010121
43012301323121
5101314442032
65100513241
71201630222
oct306617331
9118042117
1052109017
1127461304
121554b821
13aa4634c
146cc6249
154894a97
hex31b1ed9

52109017 has 4 divisors (see below), whose sum is σ = 53092260. Its totient is φ = 51125776.

The previous prime is 52109011. The next prime is 52109023. The reversal of 52109017 is 71090125.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (52109011) and next prime (52109023).

It can be written as a sum of positive squares in 2 ways, for example, as 43837641 + 8271376 = 6621^2 + 2876^2 .

It is a cyclic number.

It is not a de Polignac number, because 52109017 - 211 = 52106969 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52108982 and 52109000.

It is not an unprimeable number, because it can be changed into a prime (52109011) 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, 491542 + ... + 491647.

It is an arithmetic number, because the mean of its divisors is an integer number (13273065).

Almost surely, 252109017 is an apocalyptic number.

It is an amenable number.

52109017 is a deficient number, since it is larger than the sum of its proper divisors (983243).

52109017 is an equidigital number, since it uses as much as digits as its factorization.

52109017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 983242.

The product of its (nonzero) digits is 630, while the sum is 25.

The square root of 52109017 is about 7218.6575621787. The cubic root of 52109017 is about 373.5117715419.

The spelling of 52109017 in words is "fifty-two million, one hundred nine thousand, seventeen".

Divisors: 1 53 983189 52109017