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52179690 = 2356172819
BaseRepresentation
bin1100011100001…
…1001011101010
310122012000002010
43013003023222
5101324222230
65102220350
71202343243
oct307031352
9118160063
1052179690
11274aa412
12155846b6
13aa6c574
146d03cca
1548aa9b0
hex31c32ea

52179690 has 32 divisors (see below), whose sum is σ = 125478720. Its totient is φ = 13887104.

The previous prime is 52179689. The next prime is 52179703. The reversal of 52179690 is 9697125.

52179690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×521796902 = 5445440096992200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17101 + ... + 19919.

It is an arithmetic number, because the mean of its divisors is an integer number (3921210).

Almost surely, 252179690 is an apocalyptic number.

52179690 is an abundant number, since it is smaller than the sum of its proper divisors (73299030).

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

52179690 is a wasteful number, since it uses less digits than its factorization.

52179690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3446.

The product of its (nonzero) digits is 34020, while the sum is 39.

The square root of 52179690 is about 7223.5510657848. The cubic root of 52179690 is about 373.6805540558.

The spelling of 52179690 in words is "fifty-two million, one hundred seventy-nine thousand, six hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 617 1234 1851 2819 3085 3702 5638 6170 8457 9255 14095 16914 18510 28190 42285 84570 1739323 3478646 5217969 8696615 10435938 17393230 26089845 52179690