Search a number
-
+
68117230 = 2529317577
BaseRepresentation
bin1000000111101…
…10001011101110
311202011201021101
410003312023232
5114414222410
610431553314
71454662336
oct403661356
9152151241
1068117230
11354a5535
121a98b83a
131115c86c
1490920c6
155ea7d3a
hex40f62ee

68117230 has 32 divisors (see below), whose sum is σ = 130947840. Its totient is φ = 25455360.

The previous prime is 68117219. The next prime is 68117233. The reversal of 68117230 is 3271186.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68117233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5202 + ... + 12778.

It is an arithmetic number, because the mean of its divisors is an integer number (4092120).

Almost surely, 268117230 is an apocalyptic number.

68117230 is a deficient number, since it is larger than the sum of its proper divisors (62830610).

68117230 is a wasteful number, since it uses less digits than its factorization.

68117230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7644.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 68117230 is about 8253.3163031596. The cubic root of 68117230 is about 408.3999306435.

It can be divided in two parts, 6811 and 7230, that added together give a palindrome (14041).

The spelling of 68117230 in words is "sixty-eight million, one hundred seventeen thousand, two hundred thirty".

Divisors: 1 2 5 10 29 31 58 62 145 155 290 310 899 1798 4495 7577 8990 15154 37885 75770 219733 234887 439466 469774 1098665 1174435 2197330 2348870 6811723 13623446 34058615 68117230