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68923171 = 1031813697
BaseRepresentation
bin1000001101110…
…10111100100011
311210200122211001
410012322330203
5120121020141
610501132431
71464560122
oct406727443
9153618731
1068923171
11359a5aa9
121b0ba117
1311382655
149221ab9
1560b6a31
hex41baf23

68923171 has 8 divisors (see below), whose sum is σ = 69995744. Its totient is φ = 67858560.

The previous prime is 68923147. The next prime is 68923177. The reversal of 68923171 is 17132986.

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 68923171 - 25 = 68923139 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68923171.

It is not an unprimeable number, because it can be changed into a prime (68923177) 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, 16795 + ... + 20491.

It is an arithmetic number, because the mean of its divisors is an integer number (8749468).

Almost surely, 268923171 is an apocalyptic number.

68923171 is a deficient number, since it is larger than the sum of its proper divisors (1072573).

68923171 is a wasteful number, since it uses less digits than its factorization.

68923171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3981.

The product of its digits is 18144, while the sum is 37.

The square root of 68923171 is about 8301.9980125269. The cubic root of 68923171 is about 410.0043049320.

The spelling of 68923171 in words is "sixty-eight million, nine hundred twenty-three thousand, one hundred seventy-one".

Divisors: 1 103 181 3697 18643 380791 669157 68923171