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68847806 = 234423903
BaseRepresentation
bin1000001101010…
…00100010111110
311210112211102202
410012220202332
5120111112211
610455351502
71464124316
oct406504276
9153484382
1068847806
1135954415
121b082592
1311357261
149202446
15609e53b
hex41a88be

68847806 has 4 divisors (see below), whose sum is σ = 103271712. Its totient is φ = 34423902.

The previous prime is 68847781. The next prime is 68847817. The reversal of 68847806 is 60874886.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17211950 + ... + 17211953.

It is an arithmetic number, because the mean of its divisors is an integer number (25817928).

Almost surely, 268847806 is an apocalyptic number.

68847806 is a deficient number, since it is larger than the sum of its proper divisors (34423906).

68847806 is a wasteful number, since it uses less digits than its factorization.

68847806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34423905.

The product of its (nonzero) digits is 516096, while the sum is 47.

The square root of 68847806 is about 8297.4578034480. The cubic root of 68847806 is about 409.8548087925.

The spelling of 68847806 in words is "sixty-eight million, eight hundred forty-seven thousand, eight hundred six".

Divisors: 1 2 34423903 68847806