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168105377 = 11109713931
BaseRepresentation
bin10100000010100…
…01010110100001
3102201022122020002
422001101112201
5321013333002
624403025345
74110605066
oct1201212641
9381278202
10168105377
1186989070
124836b255
1328a9ab4b
141847cc6d
15eb59002
hexa0515a1

168105377 has 8 divisors (see below), whose sum is σ = 183568032. Its totient is φ = 152672800.

The previous prime is 168105271. The next prime is 168105383. The reversal of 168105377 is 773501861.

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 168105377 - 28 = 168105121 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 168105377.

It is not an unprimeable number, because it can be changed into a prime (168105677) 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, 5102 + ... + 19032.

It is an arithmetic number, because the mean of its divisors is an integer number (22946004).

Almost surely, 2168105377 is an apocalyptic number.

It is an amenable number.

168105377 is a deficient number, since it is larger than the sum of its proper divisors (15462655).

168105377 is a wasteful number, since it uses less digits than its factorization.

168105377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15039.

The product of its (nonzero) digits is 35280, while the sum is 38.

The square root of 168105377 is about 12965.5457656051. The cubic root of 168105377 is about 551.9001790812.

The spelling of 168105377 in words is "one hundred sixty-eight million, one hundred five thousand, three hundred seventy-seven".

Divisors: 1 11 1097 12067 13931 153241 15282307 168105377