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27970110 = 234574933
BaseRepresentation
bin110101010110…
…0101000111110
31221122000210000
41222230220332
524130020420
62435255130
7456512340
oct152545076
957560700
1027970110
11148743a3
12944a4a6
135a4407c
143a01290
1526c7690
hex1aaca3e

27970110 has 80 divisors (see below), whose sum is σ = 85970016. Its totient is φ = 6391872.

The previous prime is 27970097. The next prime is 27970127. The reversal of 27970110 is 1107972.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3204 + ... + 8136.

Almost surely, 227970110 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27970110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42985008).

27970110 is an abundant number, since it is smaller than the sum of its proper divisors (57999906).

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

27970110 is a wasteful number, since it uses less digits than its factorization.

27970110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4959 (or 4950 counting only the distinct ones).

The product of its (nonzero) digits is 882, while the sum is 27.

The square root of 27970110 is about 5288.6775284564. The cubic root of 27970110 is about 303.5508067587.

The spelling of 27970110 in words is "twenty-seven million, nine hundred seventy thousand, one hundred ten".

Divisors: 1 2 3 5 6 7 9 10 14 15 18 21 27 30 35 42 45 54 63 70 81 90 105 126 135 162 189 210 270 315 378 405 567 630 810 945 1134 1890 2835 4933 5670 9866 14799 24665 29598 34531 44397 49330 69062 73995 88794 103593 133191 147990 172655 207186 221985 266382 310779 345310 399573 443970 517965 621558 665955 799146 932337 1035930 1331910 1553895 1864674 1997865 2797011 3107790 3995730 4661685 5594022 9323370 13985055 27970110