Search a number
-
+
161206080 = 26357223149
BaseRepresentation
bin10011001101111…
…00111101000000
3102020100010011120
421212330331000
5312232043310
623555112240
73665141400
oct1146747500
9366303146
10161206080
1182aa6572
1245ba2680
1327523719
14175a4800
15e244b70
hex99bcf40

161206080 has 336 divisors, whose sum is σ = 625449600. Its totient is φ = 35008512.

The previous prime is 161206069. The next prime is 161206091. The reversal of 161206080 is 80602161.

161206080 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (161206069) and next prime (161206091).

It is a tau number, because it is divible by the number of its divisors (336).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 161206080.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1081846 + ... + 1081994.

Almost surely, 2161206080 is an apocalyptic number.

161206080 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 161206080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (312724800).

161206080 is an abundant number, since it is smaller than the sum of its proper divisors (464243520).

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

161206080 is a wasteful number, since it uses less digits than its factorization.

161206080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206 (or 189 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 161206080 is about 12696.6956331165. The cubic root of 161206080 is about 544.2441954420.

The spelling of 161206080 in words is "one hundred sixty-one million, two hundred six thousand, eighty".