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161461067 = 2921131699
BaseRepresentation
bin10011001111110…
…11001101001011
3102020211001221112
421213323031023
5312313223232
624004400535
74000252655
oct1147731513
9366731845
10161461067
11831600a9
12460a614b
13275b27c1
141762d6d5
15e2954b2
hex99fb34b

161461067 has 12 divisors (see below), whose sum is σ = 168799800. Its totient is φ = 154422912.

The previous prime is 161461061. The next prime is 161461093. The reversal of 161461067 is 760164161.

It is a happy number.

It is not a de Polignac number, because 161461067 - 218 = 161198923 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161461061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 94184 + ... + 95882.

It is an arithmetic number, because the mean of its divisors is an integer number (14066650).

Almost surely, 2161461067 is an apocalyptic number.

161461067 is a deficient number, since it is larger than the sum of its proper divisors (7338733).

161461067 is a wasteful number, since it uses less digits than its factorization.

161461067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1870 (or 1841 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 161461067 is about 12706.7331364124. The cubic root of 161461067 is about 544.5309962249.

The spelling of 161461067 in words is "one hundred sixty-one million, four hundred sixty-one thousand, sixty-seven".

Divisors: 1 29 113 841 1699 3277 49271 95033 191987 1428859 5567623 161461067