Search a number
-
+
120120168 = 23372234441
BaseRepresentation
bin1110010100011…
…10001101101000
322101000201220010
413022032031220
5221222321133
615530331520
72656001400
oct712161550
9271021803
10120120168
1161894073
1234289ba0
131bb6982c
1411d4b800
15a82b263
hex728e368

120120168 has 96 divisors (see below), whose sum is σ = 364599360. Its totient is φ = 32820480.

The previous prime is 120120157. The next prime is 120120179. The reversal of 120120168 is 861021021.

It is an interprime number because it is at equal distance from previous prime (120120157) and next prime (120120179).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24828 + ... + 29268.

It is an arithmetic number, because the mean of its divisors is an integer number (3797910).

Almost surely, 2120120168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120120168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182299680).

120120168 is an abundant number, since it is smaller than the sum of its proper divisors (244479192).

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

120120168 is a wasteful number, since it uses less digits than its factorization.

120120168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4487 (or 4476 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 120120168 is about 10959.9346713381. The cubic root of 120120168 is about 493.4070042565.

Adding to 120120168 its reverse (861021021), we get a palindrome (981141189).

The spelling of 120120168 in words is "one hundred twenty million, one hundred twenty thousand, one hundred sixty-eight".

Divisors: 1 2 3 4 6 7 8 12 14 21 23 24 28 42 46 49 56 69 84 92 98 138 147 161 168 184 196 276 294 322 392 483 552 588 644 966 1127 1176 1288 1932 2254 3381 3864 4441 4508 6762 8882 9016 13323 13524 17764 26646 27048 31087 35528 53292 62174 93261 102143 106584 124348 186522 204286 217609 248696 306429 373044 408572 435218 612858 652827 715001 746088 817144 870436 1225716 1305654 1430002 1740872 2145003 2451432 2611308 2860004 4290006 5005007 5222616 5720008 8580012 10010014 15015021 17160024 20020028 30030042 40040056 60060084 120120168