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105252253 = 1779109719
BaseRepresentation
bin1100100011000…
…00010110011101
321100001100221121
412101200112131
5203421033003
614235530541
72415425611
oct621402635
9240040847
10105252253
1154459637
122b2b9a51
1318a62352
14dd9b341
159390cbd
hex646059d

105252253 has 16 divisors (see below), whose sum is σ = 114048000. Its totient is φ = 96774912.

The previous prime is 105252239. The next prime is 105252263. The reversal of 105252253 is 352252501.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-105252253 is a prime.

It is a super-3 number, since 3×1052522533 (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105252263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146028 + ... + 146746.

It is an arithmetic number, because the mean of its divisors is an integer number (7128000).

Almost surely, 2105252253 is an apocalyptic number.

It is an amenable number.

105252253 is a deficient number, since it is larger than the sum of its proper divisors (8795747).

105252253 is a wasteful number, since it uses less digits than its factorization.

105252253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 924.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 105252253 is about 10259.2520682553. The cubic root of 105252253 is about 472.1468903274.

The spelling of 105252253 in words is "one hundred five million, two hundred fifty-two thousand, two hundred fifty-three".

Divisors: 1 17 79 109 719 1343 1853 8611 12223 56801 78371 146387 965617 1332307 6191309 105252253