Search a number
-
+
68253774 = 23103179617
BaseRepresentation
bin1000001000101…
…11100001001110
311202102122120120
410010113201032
5114433110044
610434525410
71456101411
oct404274116
9152378516
1068253774
1135589086
121aa36866
13111a9a64
1490c9b78
155ed3519
hex411784e

68253774 has 32 divisors (see below), whose sum is σ = 138827520. Its totient is φ = 22368192.

The previous prime is 68253769. The next prime is 68253781. The reversal of 68253774 is 47735286.

It is a zygodrome in base 5.

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, 110314 + ... + 110930.

It is an arithmetic number, because the mean of its divisors is an integer number (4338360).

Almost surely, 268253774 is an apocalyptic number.

68253774 is an abundant number, since it is smaller than the sum of its proper divisors (70573746).

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

68253774 is a wasteful number, since it uses less digits than its factorization.

68253774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 904.

The product of its digits is 282240, while the sum is 42.

The square root of 68253774 is about 8261.5842306424. The cubic root of 68253774 is about 408.6726337503.

The spelling of 68253774 in words is "sixty-eight million, two hundred fifty-three thousand, seven hundred seventy-four".

Divisors: 1 2 3 6 103 179 206 309 358 537 617 618 1074 1234 1851 3702 18437 36874 55311 63551 110443 110622 127102 190653 220886 331329 381306 662658 11375629 22751258 34126887 68253774