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52969988 = 2213242497
BaseRepresentation
bin1100101000010…
…0001000000100
310200200011011102
43022010020010
5102030014423
65131155232
71212144311
oct312041004
9120604142
1052969988
112799a155
12158a5b18
13ac881b6
14706bd08
1549b4c28
hex3284204

52969988 has 6 divisors (see below), whose sum is σ = 92697486. Its totient is φ = 26484992.

The previous prime is 52969933. The next prime is 52970003. The reversal of 52969988 is 88996925.

It can be written as a sum of positive squares in only one way, i.e., 32467204 + 20502784 = 5698^2 + 4528^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6621245 + ... + 6621252.

It is an arithmetic number, because the mean of its divisors is an integer number (15449581).

Almost surely, 252969988 is an apocalyptic number.

It is an amenable number.

52969988 is a deficient number, since it is larger than the sum of its proper divisors (39727498).

52969988 is a wasteful number, since it uses less digits than its factorization.

52969988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13242501 (or 13242499 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 56.

The square root of 52969988 is about 7278.0483647747. The cubic root of 52969988 is about 375.5576603694.

The spelling of 52969988 in words is "fifty-two million, nine hundred sixty-nine thousand, nine hundred eighty-eight".

Divisors: 1 2 4 13242497 26484994 52969988