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65320412 = 22294711981
BaseRepresentation
bin1111100100101…
…1010111011100
311112220121202112
43321023113130
5113210223122
610252013152
71422133343
oct371132734
9145817675
1065320412
1133965213
1219a611b8
13106c0841
148964b5a
155b042e2
hex3e4b5dc

65320412 has 24 divisors (see below), whose sum is σ = 120778560. Its totient is φ = 30860480.

The previous prime is 65320369. The next prime is 65320427. The reversal of 65320412 is 21402356.

It is a super-3 number, since 3×653204123 (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 539 + ... + 11442.

It is an arithmetic number, because the mean of its divisors is an integer number (5032440).

Almost surely, 265320412 is an apocalyptic number.

It is an amenable number.

65320412 is a deficient number, since it is larger than the sum of its proper divisors (55458148).

65320412 is a wasteful number, since it uses less digits than its factorization.

65320412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12061 (or 12059 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 65320412 is about 8082.1044289220. The cubic root of 65320412 is about 402.7321541784.

Adding to 65320412 its reverse (21402356), we get a palindrome (86722768).

The spelling of 65320412 in words is "sixty-five million, three hundred twenty thousand, four hundred twelve".

Divisors: 1 2 4 29 47 58 94 116 188 1363 2726 5452 11981 23962 47924 347449 563107 694898 1126214 1389796 2252428 16330103 32660206 65320412