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64146208 = 257286367
BaseRepresentation
bin1111010010110…
…0101100100000
311110200222001111
43310230230200
5112410134313
610210513104
71406143120
oct364545440
9143628044
1064146208
1133232aa5
1219595794
131039c249
14873ac80
15597143d
hex3d2cb20

64146208 has 24 divisors (see below), whose sum is σ = 144329472. Its totient is φ = 27491136.

The previous prime is 64146193. The next prime is 64146227. The reversal of 64146208 is 80264146.

It is a super-2 number, since 2×641462082 = 8229472001558528, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 64146208.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142960 + ... + 143407.

It is an arithmetic number, because the mean of its divisors is an integer number (6013728).

Almost surely, 264146208 is an apocalyptic number.

It is an amenable number.

64146208 is an abundant number, since it is smaller than the sum of its proper divisors (80183264).

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

64146208 is a wasteful number, since it uses less digits than its factorization.

64146208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286384 (or 286376 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 64146208 is about 8009.1327870126. The cubic root of 64146208 is about 400.3043683410.

The spelling of 64146208 in words is "sixty-four million, one hundred forty-six thousand, two hundred eight".

Divisors: 1 2 4 7 8 14 16 28 32 56 112 224 286367 572734 1145468 2004569 2290936 4009138 4581872 8018276 9163744 16036552 32073104 64146208