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52240269 = 3171024319
BaseRepresentation
bin1100011101000…
…1111110001101
310122022002011210
43013101332031
5101333142034
65103405033
71203014664
oct307217615
9118262153
1052240269
1127540984
12155b3779
13aa91003
146d1bddb
1548bd8e9
hex31d1f8d

52240269 has 8 divisors (see below), whose sum is σ = 73751040. Its totient is φ = 32778176.

The previous prime is 52240267. The next prime is 52240297. The reversal of 52240269 is 96204225.

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

It is not a de Polignac number, because 52240269 - 21 = 52240267 is a prime.

It is a super-2 number, since 2×522402692 = 5458091410384722, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52240267) 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, 512109 + ... + 512210.

It is an arithmetic number, because the mean of its divisors is an integer number (9218880).

Almost surely, 252240269 is an apocalyptic number.

It is an amenable number.

52240269 is a deficient number, since it is larger than the sum of its proper divisors (21510771).

52240269 is a wasteful number, since it uses less digits than its factorization.

52240269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1024339.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 52240269 is about 7227.7430087130. The cubic root of 52240269 is about 373.8251086361.

The spelling of 52240269 in words is "fifty-two million, two hundred forty thousand, two hundred sixty-nine".

Divisors: 1 3 17 51 1024319 3072957 17413423 52240269