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52243405 = 517360397
BaseRepresentation
bin1100011101001…
…0101111001101
310122022020110221
43013102233031
5101333242110
65103431341
71203030064
oct307225715
9118266427
1052243405
1127543275
12155b5551
13aa92576
146d1d1db
1548be7da
hex31d2bcd

52243405 has 8 divisors (see below), whose sum is σ = 63055512. Its totient is φ = 41552448.

The previous prime is 52243393. The next prime is 52243417. The reversal of 52243405 is 50434225.

It is an interprime number because it is at equal distance from previous prime (52243393) and next prime (52243417).

It can be written as a sum of positive squares in 4 ways, for example, as 8538084 + 43705321 = 2922^2 + 6611^2 .

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 52243405 - 213 = 52235213 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52243405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29334 + ... + 31063.

It is an arithmetic number, because the mean of its divisors is an integer number (7881939).

Almost surely, 252243405 is an apocalyptic number.

It is an amenable number.

52243405 is a deficient number, since it is larger than the sum of its proper divisors (10812107).

52243405 is a wasteful number, since it uses less digits than its factorization.

52243405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60575.

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 52243405 is about 7227.9599473157. The cubic root of 52243405 is about 373.8325887666.

The spelling of 52243405 in words is "fifty-two million, two hundred forty-three thousand, four hundred five".

Divisors: 1 5 173 865 60397 301985 10448681 52243405