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161356060 = 2258067803
BaseRepresentation
bin10011001111000…
…01100100011100
3102020121201220101
421213201210130
5312301343220
624002230444
73666334555
oct1147414434
9366551811
10161356060
1183099218
1246055424
1327576a78
141760332c
15e27430a
hex99e191c

161356060 has 12 divisors (see below), whose sum is σ = 338847768. Its totient is φ = 64542416.

The previous prime is 161356057. The next prime is 161356073. The reversal of 161356060 is 60653161.

161356060 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 4033882 + ... + 4033921.

It is an arithmetic number, because the mean of its divisors is an integer number (28237314).

Almost surely, 2161356060 is an apocalyptic number.

161356060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161356060 is an abundant number, since it is smaller than the sum of its proper divisors (177491708).

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

161356060 is a wasteful number, since it uses less digits than its factorization.

161356060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8067812 (or 8067810 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 161356060 is about 12702.6005211531. The cubic root of 161356060 is about 544.4129244868.

The spelling of 161356060 in words is "one hundred sixty-one million, three hundred fifty-six thousand, sixty".

Divisors: 1 2 4 5 10 20 8067803 16135606 32271212 40339015 80678030 161356060