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68799958 = 2234714657
BaseRepresentation
bin1000001100111…
…00110111010110
311210110101210121
410012130313112
5120103044313
610454342154
71463534653
oct406346726
9153411717
1068799958
1135921477
121b05a95a
131133b546
1491ccc2a
15609028d
hex419cdd6

68799958 has 8 divisors (see below), whose sum is σ = 103250952. Its totient is φ = 34382976.

The previous prime is 68799953. The next prime is 68799967. The reversal of 68799958 is 85999786.

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

It is a junction number, because it is equal to n+sod(n) for n = 68799896 and 68799905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68799953) 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, 2635 + ... + 12022.

It is an arithmetic number, because the mean of its divisors is an integer number (12906369).

Almost surely, 268799958 is an apocalyptic number.

68799958 is a deficient number, since it is larger than the sum of its proper divisors (34450994).

68799958 is a wasteful number, since it uses less digits than its factorization.

68799958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17006.

The product of its digits is 9797760, while the sum is 61.

The square root of 68799958 is about 8294.5740095559. The cubic root of 68799958 is about 409.7598395223.

The spelling of 68799958 in words is "sixty-eight million, seven hundred ninety-nine thousand, nine hundred fifty-eight".

Divisors: 1 2 2347 4694 14657 29314 34399979 68799958