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168050920 = 23515127823
BaseRepresentation
bin10100000010001…
…00000011101000
3102201012212112011
422001010003220
5321010112140
624401525304
74110260242
oct1201040350
9381185464
10168050920
1186951164
1248343834
1328a7c11b
1418467092
15eb47cea
hexa0440e8

168050920 has 32 divisors (see below), whose sum is σ = 380632320. Its totient is φ = 66772800.

The previous prime is 168050917. The next prime is 168050921. The reversal of 168050920 is 29050861.

It is a super-2 number, since 2×1680509202 = 56482223425692800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (168050921) 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, 7872 + ... + 19951.

It is an arithmetic number, because the mean of its divisors is an integer number (11894760).

Almost surely, 2168050920 is an apocalyptic number.

168050920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168050920 is an abundant number, since it is smaller than the sum of its proper divisors (212581400).

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

168050920 is a wasteful number, since it uses less digits than its factorization.

168050920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27985 (or 27981 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 168050920 is about 12963.4455296422. The cubic root of 168050920 is about 551.8405774302.

The spelling of 168050920 in words is "one hundred sixty-eight million, fifty thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 151 302 604 755 1208 1510 3020 6040 27823 55646 111292 139115 222584 278230 556460 1112920 4201273 8402546 16805092 21006365 33610184 42012730 84025460 168050920