Search a number
-
+
168804130 = 25112366721
BaseRepresentation
bin10100000111110…
…11111100100010
3102202122010201211
422003323330202
5321203213010
624430020334
74116545215
oct1203737442
9382563654
10168804130
1187316050
12486476aa
1328c83c01
14185c177c
15ec4608a
hexa0fbf22

168804130 has 32 divisors (see below), whose sum is σ = 345886848. Its totient is φ = 58713600.

The previous prime is 168804127. The next prime is 168804131. The reversal of 168804130 is 31408861.

It is a junction number, because it is equal to n+sod(n) for n = 168804092 and 168804101.

It is not an unprimeable number, because it can be changed into a prime (168804131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30831 + ... + 35890.

It is an arithmetic number, because the mean of its divisors is an integer number (10808964).

Almost surely, 2168804130 is an apocalyptic number.

168804130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

168804130 is an abundant number, since it is smaller than the sum of its proper divisors (177082718).

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

168804130 is a wasteful number, since it uses less digits than its factorization.

168804130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66762.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 168804130 is about 12992.4643543864. The cubic root of 168804130 is about 552.6638048869.

The spelling of 168804130 in words is "one hundred sixty-eight million, eight hundred four thousand, one hundred thirty".

Divisors: 1 2 5 10 11 22 23 46 55 110 115 230 253 506 1265 2530 66721 133442 333605 667210 733931 1467862 1534583 3069166 3669655 7339310 7672915 15345830 16880413 33760826 84402065 168804130