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52253645 = 559177131
BaseRepresentation
bin1100011101010…
…1001111001101
310122022202112012
43013111033031
5101334104040
65103551005
71203101663
oct307251715
9118282465
1052253645
112754aa34
12155bb465
13aa97122
146d22c33
1548c2865
hex31d53cd

52253645 has 8 divisors (see below), whose sum is σ = 63767520. Its totient is φ = 41094160.

The previous prime is 52253627. The next prime is 52253647. The reversal of 52253645 is 54635225.

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

It is not a de Polignac number, because 52253645 - 218 = 51991501 is a prime.

It is a super-3 number, since 3×522536453 (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52253647) 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, 88271 + ... + 88860.

It is an arithmetic number, because the mean of its divisors is an integer number (7970940).

Almost surely, 252253645 is an apocalyptic number.

It is an amenable number.

52253645 is a deficient number, since it is larger than the sum of its proper divisors (11513875).

52253645 is a wasteful number, since it uses less digits than its factorization.

52253645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177195.

The product of its digits is 36000, while the sum is 32.

The square root of 52253645 is about 7228.6682729255. The cubic root of 52253645 is about 373.8570115981.

The spelling of 52253645 in words is "fifty-two million, two hundred fifty-three thousand, six hundred forty-five".

Divisors: 1 5 59 295 177131 885655 10450729 52253645