Search a number
-
+
68198304 = 253710399
BaseRepresentation
bin1000001000010…
…01111110100000
311202022211111010
410010021332200
5114424321204
610433420520
71455450606
oct404117640
9152284433
1068198304
1135550439
121aa0a740
131118a735
1490b3876
155ec1d89
hex4109fa0

68198304 has 24 divisors (see below), whose sum is σ = 179020800. Its totient is φ = 22732736.

The previous prime is 68198219. The next prime is 68198309. The reversal of 68198304 is 40389186.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68198309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 355104 + ... + 355295.

It is an arithmetic number, because the mean of its divisors is an integer number (7459200).

Almost surely, 268198304 is an apocalyptic number.

It is an amenable number.

68198304 is an abundant number, since it is smaller than the sum of its proper divisors (110822496).

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

68198304 is a wasteful number, since it uses less digits than its factorization.

68198304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710412 (or 710404 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 68198304 is about 8258.2264439769. The cubic root of 68198304 is about 408.5618940138.

The spelling of 68198304 in words is "sixty-eight million, one hundred ninety-eight thousand, three hundred four".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 710399 1420798 2131197 2841596 4262394 5683192 8524788 11366384 17049576 22732768 34099152 68198304