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68098933 = 79728419
BaseRepresentation
bin1000000111100…
…01101101110101
311202010210011201
410003301231311
5114413131213
610431332501
71454555110
oct403615565
9152123151
1068098933
1135492811
121a981131
1311154436
149089577
155ea26dd
hex40f1b75

68098933 has 4 divisors (see below), whose sum is σ = 77827360. Its totient is φ = 58370508.

The previous prime is 68098903. The next prime is 68098993. The reversal of 68098933 is 33989086.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 68098933 - 29 = 68098421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68098903) 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, 4864203 + ... + 4864216.

It is an arithmetic number, because the mean of its divisors is an integer number (19456840).

Almost surely, 268098933 is an apocalyptic number.

It is an amenable number.

68098933 is a deficient number, since it is larger than the sum of its proper divisors (9728427).

68098933 is an equidigital number, since it uses as much as digits as its factorization.

68098933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9728426.

The product of its (nonzero) digits is 279936, while the sum is 46.

The square root of 68098933 is about 8252.2077651984. The cubic root of 68098933 is about 408.3633605389.

The spelling of 68098933 in words is "sixty-eight million, ninety-eight thousand, nine hundred thirty-three".

Divisors: 1 7 9728419 68098933