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166110260 = 22529286397
BaseRepresentation
bin10011110011010…
…10010000110100
3102120120021102212
421321222100310
5320011012020
624252152552
74054625321
oct1171522064
9376507385
10166110260
1185846108
1247768758
132854c9c4
14180bdb48
15e8b2cc5
hex9e6a434

166110260 has 24 divisors (see below), whose sum is σ = 360861480. Its totient is φ = 64152704.

The previous prime is 166110221. The next prime is 166110271. The reversal of 166110260 is 62011661.

It can be written as a sum of positive squares in 4 ways, for example, as 30713764 + 135396496 = 5542^2 + 11636^2 .

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 7 ways as a sum of consecutive naturals, for example, 142619 + ... + 143778.

It is an arithmetic number, because the mean of its divisors is an integer number (15035895).

Almost surely, 2166110260 is an apocalyptic number.

166110260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166110260 is an abundant number, since it is smaller than the sum of its proper divisors (194751220).

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

166110260 is a wasteful number, since it uses less digits than its factorization.

166110260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286435 (or 286433 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 166110260 is about 12888.3769342769. The cubic root of 166110260 is about 549.7081206121.

The spelling of 166110260 in words is "one hundred sixty-six million, one hundred ten thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 29 58 116 145 290 580 286397 572794 1145588 1431985 2863970 5727940 8305513 16611026 33222052 41527565 83055130 166110260