| Base | Representation |
|---|---|
| bin | 1111011011000… |
| … | …1100010000000 |
| 3 | 11111201121102012 |
| 4 | 3312301202000 |
| 5 | 113030042204 |
| 6 | 10230312052 |
| 7 | 1413600320 |
| oct | 366614200 |
| 9 | 144647365 |
| 10 | 64690304 |
| 11 | 33574868 |
| 12 | 197b8628 |
| 13 | 1052cab3 |
| 14 | 883d280 |
| 15 | 5a2c76e |
| hex | 3db1880 |
64690304 has 128 divisors (see below), whose sum is σ = 162155520. Its totient is φ = 25067520.
The previous prime is 64690267. The next prime is 64690331. The reversal of 64690304 is 40309646.
It is a tau number, because it is divible by the number of its divisors (128).
It is a super-2 number, since 2×646903042 = 8369670863224832, which contains 22 as substring.
It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.
It is a Harshad number since it is a multiple of its sum of digits (32).
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 472124 + ... + 472260.
It is an arithmetic number, because the mean of its divisors is an integer number (1266840).
Almost surely, 264690304 is an apocalyptic number.
64690304 is a gapful number since it is divisible by the number (64) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 64690304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81077760).
64690304 is an abundant number, since it is smaller than the sum of its proper divisors (97465216).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
64690304 is a wasteful number, since it uses less digits than its factorization.
64690304 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 206 (or 194 counting only the distinct ones).
The product of its (nonzero) digits is 15552, while the sum is 32.
The square root of 64690304 is about 8043.0282854159. The cubic root of 64690304 is about 401.4329935268.
The spelling of 64690304 in words is "sixty-four million, six hundred ninety thousand, three hundred four".
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