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68869455 = 354591297
BaseRepresentation
bin1000001101011…
…01110101001111
311210120221010120
410012231311033
5120112310310
610500040023
71464244404
oct406556517
9153527116
1068869455
1135969706
121b093013
1311364075
14920a2ab
1560a5b70
hex41add4f

68869455 has 8 divisors (see below), whose sum is σ = 110191152. Its totient is φ = 36730368.

The previous prime is 68869453. The next prime is 68869457. The reversal of 68869455 is 55496886.

It is an interprime number because it is at equal distance from previous prime (68869453) and next prime (68869457).

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

It is not a de Polignac number, because 68869455 - 21 = 68869453 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68869398 and 68869407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68869453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2295634 + ... + 2295663.

It is an arithmetic number, because the mean of its divisors is an integer number (13773894).

Almost surely, 268869455 is an apocalyptic number.

68869455 is a deficient number, since it is larger than the sum of its proper divisors (41321697).

68869455 is a wasteful number, since it uses less digits than its factorization.

68869455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4591305.

The product of its digits is 2073600, while the sum is 51.

The square root of 68869455 is about 8298.7622571080. The cubic root of 68869455 is about 409.8977635232.

The spelling of 68869455 in words is "sixty-eight million, eight hundred sixty-nine thousand, four hundred fifty-five".

Divisors: 1 3 5 15 4591297 13773891 22956485 68869455