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160242181 = 11196112569
BaseRepresentation
bin10011000110100…
…01101000000101
3102011112010221121
421203101220011
5312010222211
623522313541
73654015241
oct1143215005
9364463847
10160242181
11824a8360
12457b88b1
1327276a78
14173d3421
15e104271
hex98d1a05

160242181 has 16 divisors (see below), whose sum is σ = 187041600. Its totient is φ = 135734400.

The previous prime is 160242179. The next prime is 160242211. The reversal of 160242181 is 181242061.

It is a cyclic number.

It is not a de Polignac number, because 160242181 - 21 = 160242179 is a prime.

It is a super-2 number, since 2×1602421812 = 51355113143273522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (160242151) 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, 6465 + ... + 19033.

It is an arithmetic number, because the mean of its divisors is an integer number (11690100).

Almost surely, 2160242181 is an apocalyptic number.

160242181 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

160242181 is a deficient number, since it is larger than the sum of its proper divisors (26799419).

160242181 is a wasteful number, since it uses less digits than its factorization.

160242181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12660.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 160242181 is about 12658.6800654729. The cubic root of 160242181 is about 543.1572937249.

The spelling of 160242181 in words is "one hundred sixty million, two hundred forty-two thousand, one hundred eighty-one".

Divisors: 1 11 19 61 209 671 1159 12569 12749 138259 238811 766709 2626921 8433799 14567471 160242181