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68426444 = 2234994889
BaseRepresentation
bin1000001010000…
…01101011001100
311202202102102202
410011001223030
5120004121234
610442341032
71460421002
oct405015314
9152672382
1068426444
1135696889
121aaba778
131123a528
149132a72
15601977e
hex4141acc

68426444 has 12 divisors (see below), whose sum is σ = 119805000. Its totient is φ = 34196448.

The previous prime is 68426443. The next prime is 68426453. The reversal of 68426444 is 44462486.

It is a junction number, because it is equal to n+sod(n) for n = 68426398 and 68426407.

It is not an unprimeable number, because it can be changed into a prime (68426441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11552 + ... + 16440.

It is an arithmetic number, because the mean of its divisors is an integer number (9983750).

Almost surely, 268426444 is an apocalyptic number.

It is an amenable number.

68426444 is a deficient number, since it is larger than the sum of its proper divisors (51378556).

68426444 is a wasteful number, since it uses less digits than its factorization.

68426444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8392 (or 8390 counting only the distinct ones).

The product of its digits is 147456, while the sum is 38.

The square root of 68426444 is about 8272.0278045954. The cubic root of 68426444 is about 409.0169667541.

The spelling of 68426444 in words is "sixty-eight million, four hundred twenty-six thousand, four hundred forty-four".

Divisors: 1 2 4 3499 4889 6998 9778 13996 19556 17106611 34213222 68426444