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68013802 = 2281121021
BaseRepresentation
bin1000000110111…
…00111011101010
311201222110101201
410003130323222
5114402420202
610425434414
71454051653
oct403347352
9151873351
1068013802
113543485a
121a93ba0a
131112476c
14906652a
155e87387
hex40dceea

68013802 has 8 divisors (see below), whose sum is σ = 102384612. Its totient is φ = 33885600.

The previous prime is 68013791. The next prime is 68013817. The reversal of 68013802 is 20831086.

It can be written as a sum of positive squares in 2 ways, for example, as 64176121 + 3837681 = 8011^2 + 1959^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59949 + ... + 61072.

Almost surely, 268013802 is an apocalyptic number.

68013802 is a deficient number, since it is larger than the sum of its proper divisors (34370810).

68013802 is a wasteful number, since it uses less digits than its factorization.

68013802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121304.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 68013802 is about 8247.0480779489. The cubic root of 68013802 is about 408.1931235215.

Adding to 68013802 its reverse (20831086), we get a palindrome (88844888).

The spelling of 68013802 in words is "sixty-eight million, thirteen thousand, eight hundred two".

Divisors: 1 2 281 562 121021 242042 34006901 68013802