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64985452 = 2272320909
BaseRepresentation
bin1111011111100…
…1100101101100
311112021121021121
43313321211230
5113114013302
610240510324
71416236650
oct367714554
9145247247
1064985452
1133756594
121991b3a4
131060423c
1488b8a60
155a89e37
hex3df996c

64985452 has 12 divisors (see below), whose sum is σ = 129970960. Its totient is φ = 27850896.

The previous prime is 64985449. The next prime is 64985467. The reversal of 64985452 is 25458946.

64985452 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 64985399 and 64985408.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1160427 + ... + 1160482.

Almost surely, 264985452 is an apocalyptic number.

It is an amenable number.

64985452 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

64985452 is a wasteful number, since it uses less digits than its factorization.

64985452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2320920 (or 2320918 counting only the distinct ones).

The product of its digits is 345600, while the sum is 43.

The square root of 64985452 is about 8061.3554691503. The cubic root of 64985452 is about 402.0425769447.

The spelling of 64985452 in words is "sixty-four million, nine hundred eighty-five thousand, four hundred fifty-two".

Divisors: 1 2 4 7 14 28 2320909 4641818 9283636 16246363 32492726 64985452