Search a number
-
+
161502160 = 24529671039
BaseRepresentation
bin10011010000001…
…01001111010000
3102020220011022111
421220011033100
5312321032120
624005315104
74000513531
oct1150051720
9366804274
10161502160
1183188a66
1246105a94
13275c8411
1417640688
15e2a275a
hex9a053d0

161502160 has 80 divisors (see below), whose sum is σ = 394617600. Its totient is φ = 61383168.

The previous prime is 161502127. The next prime is 161502163. The reversal of 161502160 is 61205161.

161502160 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161502163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154921 + ... + 155959.

It is an arithmetic number, because the mean of its divisors is an integer number (4932720).

Almost surely, 2161502160 is an apocalyptic number.

161502160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 161502160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197308800).

161502160 is an abundant number, since it is smaller than the sum of its proper divisors (233115440).

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

161502160 is a wasteful number, since it uses less digits than its factorization.

161502160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1148 (or 1142 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 161502160 is about 12708.3500109180. The cubic root of 161502160 is about 544.5771879883.

The spelling of 161502160 in words is "one hundred sixty-one million, five hundred two thousand, one hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 29 40 58 67 80 116 134 145 232 268 290 335 464 536 580 670 1039 1072 1160 1340 1943 2078 2320 2680 3886 4156 5195 5360 7772 8312 9715 10390 15544 16624 19430 20780 30131 31088 38860 41560 60262 69613 77720 83120 120524 139226 150655 155440 241048 278452 301310 348065 482096 556904 602620 696130 1113808 1205240 1392260 2018777 2410480 2784520 4037554 5569040 8075108 10093885 16150216 20187770 32300432 40375540 80751080 161502160