Search a number
-
+
68135360 = 265212923
BaseRepresentation
bin1000000111110…
…10100111000000
311202012122010212
410003322213000
5114420312420
610432213252
71455066236
oct403724700
9152178125
1068135360
1135508117
121a99a228
1311167ba7
149098956
155ead3c5
hex40fa9c0

68135360 has 28 divisors (see below), whose sum is σ = 162248088. Its totient is φ = 27254016.

The previous prime is 68135359. The next prime is 68135377. The reversal of 68135360 is 6353186.

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 3 ways as a sum of consecutive naturals, for example, 106142 + ... + 106781.

Almost surely, 268135360 is an apocalyptic number.

It is an amenable number.

68135360 is an abundant number, since it is smaller than the sum of its proper divisors (94112728).

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

68135360 is a wasteful number, since it uses less digits than its factorization.

68135360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212940 (or 212930 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 68135360 is about 8254.4145764554. The cubic root of 68135360 is about 408.4361605075.

The spelling of 68135360 in words is "sixty-eight million, one hundred thirty-five thousand, three hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 160 320 212923 425846 851692 1064615 1703384 2129230 3406768 4258460 6813536 8516920 13627072 17033840 34067680 68135360