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168705008 = 2417620239
BaseRepresentation
bin10100000111000…
…11101111110000
3102202110002202122
422003203233300
5321142030013
624423533412
74115653223
oct1203435760
9382402678
10168705008
118725862a
12485ba268
1328c4aa64
14185975ba
15ec26a08
hexa0e3bf0

168705008 has 20 divisors (see below), whose sum is σ = 346093920. Its totient is φ = 79390464.

The previous prime is 168705001. The next prime is 168705011. The reversal of 168705008 is 800507861.

It is a happy number.

168705008 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1687050082 = 56922759448560128, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168705001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 309848 + ... + 310391.

It is an arithmetic number, because the mean of its divisors is an integer number (17304696).

Almost surely, 2168705008 is an apocalyptic number.

It is an amenable number.

168705008 is an abundant number, since it is smaller than the sum of its proper divisors (177388912).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

168705008 is a wasteful number, since it uses less digits than its factorization.

168705008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620264 (or 620258 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 35.

The square root of 168705008 is about 12988.6491984348. The cubic root of 168705008 is about 552.5556087432. Note that the first 3 decimals are identical.

The spelling of 168705008 in words is "one hundred sixty-eight million, seven hundred five thousand, eight".

Divisors: 1 2 4 8 16 17 34 68 136 272 620239 1240478 2480956 4961912 9923824 10544063 21088126 42176252 84352504 168705008