Search a number
-
+
65000388 = 2235416699
BaseRepresentation
bin1111011111110…
…1001111000100
311112022100202210
43313331033010
5113120003023
610241103420
71416331335
oct367751704
9145270683
1065000388
1133766832
1219927b70
131060ac8b
1488c028c
155a8e593
hex3dfd3c4

65000388 has 12 divisors (see below), whose sum is σ = 151667600. Its totient is φ = 21666792.

The previous prime is 65000357. The next prime is 65000393. The reversal of 65000388 is 88300056.

65000388 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

65000388 is strictly pandigital in base 9.

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, 2708338 + ... + 2708361.

Almost surely, 265000388 is an apocalyptic number.

It is an amenable number.

65000388 is an abundant number, since it is smaller than the sum of its proper divisors (86667212).

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

65000388 is a wasteful number, since it uses less digits than its factorization.

65000388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5416706 (or 5416704 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 65000388 is about 8062.2818110012. The cubic root of 65000388 is about 402.0733758786.

The spelling of 65000388 in words is "sixty-five million, three hundred eighty-eight", and thus it is an aban number.

Divisors: 1 2 3 4 6 12 5416699 10833398 16250097 21666796 32500194 65000388