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3285136218 = 237137382421
BaseRepresentation
bin1100001111001111…
…0011001101011010
322110221120012200210
43003303303031122
523211443324333
61301551511550
7144260124420
oct30363631532
98427505623
103285136218
111436412511
127782285b6
134047a99b0
1423242b110
15143618a63
hexc3cf335a

3285136218 has 64 divisors (see below), whose sum is σ = 8197362432. Its totient is φ = 854530560.

The previous prime is 3285136213. The next prime is 3285136223. The reversal of 3285136218 is 8126315823.

It is an interprime number because it is at equal distance from previous prime (3285136213) and next prime (3285136223).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (3285136213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1353 + ... + 81068.

It is an arithmetic number, because the mean of its divisors is an integer number (128083788).

Almost surely, 23285136218 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3285136218, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4098681216).

3285136218 is an abundant number, since it is smaller than the sum of its proper divisors (4912226214).

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

3285136218 is a wasteful number, since it uses less digits than its factorization.

3285136218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82519.

The product of its digits is 69120, while the sum is 39.

The square root of 3285136218 is about 57316.1078406411. The cubic root of 3285136218 is about 1486.5669075703.

The spelling of 3285136218 in words is "three billion, two hundred eighty-five million, one hundred thirty-six thousand, two hundred eighteen".

Divisors: 1 2 3 6 7 13 14 21 26 39 42 73 78 91 146 182 219 273 438 511 546 949 1022 1533 1898 2847 3066 5694 6643 13286 19929 39858 82421 164842 247263 494526 576947 1071473 1153894 1730841 2142946 3214419 3461682 6016733 6428838 7500311 12033466 15000622 18050199 22500933 36100398 42117131 45001866 78217529 84234262 126351393 156435058 234652587 252702786 469305174 547522703 1095045406 1642568109 3285136218