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68881834 = 279750723
BaseRepresentation
bin1000001101100…
…00110110101010
311210121120010001
410012300312222
5120113204314
610500213214
71464325450
oct406606652
9153546101
1068881834
1135977a3a
121b09a20a
13113698a8
1492109d0
1560a9674
hex41b0daa

68881834 has 16 divisors (see below), whose sum is σ = 119302848. Its totient is φ = 29215872.

The previous prime is 68881831. The next prime is 68881843. The reversal of 68881834 is 43818886.

It is not an unprimeable number, because it can be changed into a prime (68881831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24004 + ... + 26719.

It is an arithmetic number, because the mean of its divisors is an integer number (7456428).

Almost surely, 268881834 is an apocalyptic number.

68881834 is a deficient number, since it is larger than the sum of its proper divisors (50421014).

68881834 is a wasteful number, since it uses less digits than its factorization.

68881834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50829.

The product of its digits is 294912, while the sum is 46.

The square root of 68881834 is about 8299.5080577104. The cubic root of 68881834 is about 409.9223211950.

The spelling of 68881834 in words is "sixty-eight million, eight hundred eighty-one thousand, eight hundred thirty-four".

Divisors: 1 2 7 14 97 194 679 1358 50723 101446 355061 710122 4920131 9840262 34440917 68881834