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68690101 = 5911310303
BaseRepresentation
bin1000001100000…
…10000010110101
311210020211002211
410012002002311
5120041040401
610452133421
71462566454
oct406020265
9153224084
1068690101
1135856987
121b007271
131130053c
1491a0b9b
15606c951
hex41820b5

68690101 has 8 divisors (see below), whose sum is σ = 70479360. Its totient is φ = 66921792.

The previous prime is 68690071. The next prime is 68690123. The reversal of 68690101 is 10109686.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 68690101 - 221 = 66592949 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 (68690161) 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, 1516 + ... + 11818.

It is an arithmetic number, because the mean of its divisors is an integer number (8809920).

Almost surely, 268690101 is an apocalyptic number.

It is an amenable number.

68690101 is a deficient number, since it is larger than the sum of its proper divisors (1789259).

68690101 is a wasteful number, since it uses less digits than its factorization.

68690101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10475.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 68690101 is about 8287.9491431837. The cubic root of 68690101 is about 409.5416273380.

Adding to 68690101 its reverse (10109686), we get a palindrome (78799787).

The spelling of 68690101 in words is "sixty-eight million, six hundred ninety thousand, one hundred one".

Divisors: 1 59 113 6667 10303 607877 1164239 68690101