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68981110 = 2511627101
BaseRepresentation
bin1000001110010…
…01000101110110
311210210121021221
410013021011312
5120124343420
610502300554
71465221052
oct407110566
9153717257
1068981110
1135a35590
121b12775a
13113a2b33
149238c62
1560c8caa
hex41c9176

68981110 has 16 divisors (see below), whose sum is σ = 135454032. Its totient is φ = 25084000.

The previous prime is 68981093. The next prime is 68981137. The reversal of 68981110 is 1118986.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 313441 + ... + 313660.

It is an arithmetic number, because the mean of its divisors is an integer number (8465877).

Almost surely, 268981110 is an apocalyptic number.

68981110 is a deficient number, since it is larger than the sum of its proper divisors (66472922).

68981110 is a wasteful number, since it uses less digits than its factorization.

68981110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627119.

The product of its (nonzero) digits is 3456, while the sum is 34.

The square root of 68981110 is about 8305.4867407034. The cubic root of 68981110 is about 410.1191602882.

It can be divided in two parts, 6898 and 1110, that added together give a palindrome (8008).

The spelling of 68981110 in words is "sixty-eight million, nine hundred eighty-one thousand, one hundred ten".

Divisors: 1 2 5 10 11 22 55 110 627101 1254202 3135505 6271010 6898111 13796222 34490555 68981110