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52069986 = 233964259
BaseRepresentation
bin1100011010100…
…0011001100010
310121222102121000
43012220121202
5101312214421
65100012430
71201405353
oct306503142
9117872530
1052069986
1127434a51
1215531116
13aa31657
146cb5d2a
154888226
hex31a8662

52069986 has 16 divisors (see below), whose sum is σ = 115711200. Its totient is φ = 17356644.

The previous prime is 52069981. The next prime is 52069991. The reversal of 52069986 is 68996025.

It is an interprime number because it is at equal distance from previous prime (52069981) and next prime (52069991).

It is a super-2 number, since 2×520699862 = 5422566884080392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52069981) 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 7 ways as a sum of consecutive naturals, for example, 482076 + ... + 482183.

It is an arithmetic number, because the mean of its divisors is an integer number (7231950).

Almost surely, 252069986 is an apocalyptic number.

52069986 is an abundant number, since it is smaller than the sum of its proper divisors (63641214).

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

52069986 is a wasteful number, since it uses less digits than its factorization.

52069986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 964270 (or 964264 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 52069986 is about 7215.9535752387. The cubic root of 52069986 is about 373.4184915927.

The spelling of 52069986 in words is "fifty-two million, sixty-nine thousand, nine hundred eighty-six".

Divisors: 1 2 3 6 9 18 27 54 964259 1928518 2892777 5785554 8678331 17356662 26034993 52069986