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53297706 = 23711115363
BaseRepresentation
bin1100101101010…
…0001000101010
310201021210201010
43023110020222
5102121011311
65142204350
71215010620
oct313241052
9121253633
1053297706
11280a33a0
1215a236b6
13b071407
147115510
154a2bda6
hex32d422a

53297706 has 32 divisors (see below), whose sum is σ = 132899328. Its totient is φ = 13843440.

The previous prime is 53297681. The next prime is 53297707. The reversal of 53297706 is 60779235.

It is a super-3 number, since 3×532977063 (a number of 24 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (53297707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57220 + ... + 58143.

It is an arithmetic number, because the mean of its divisors is an integer number (4153104).

Almost surely, 253297706 is an apocalyptic number.

53297706 is an abundant number, since it is smaller than the sum of its proper divisors (79601622).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53297706 is a wasteful number, since it uses less digits than its factorization.

53297706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115386.

The product of its (nonzero) digits is 79380, while the sum is 39.

The square root of 53297706 is about 7300.5277891396. The cubic root of 53297706 is about 376.3305763713.

The spelling of 53297706 in words is "fifty-three million, two hundred ninety-seven thousand, seven hundred six".

Divisors: 1 2 3 6 7 11 14 21 22 33 42 66 77 154 231 462 115363 230726 346089 692178 807541 1268993 1615082 2422623 2537986 3806979 4845246 7613958 8882951 17765902 26648853 53297706