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27146960 = 2451719961
BaseRepresentation
bin110011110001…
…1101011010000
31220002012121222
41213203223100
523422200320
62405504212
7446513441
oct147435320
956065558
1027146960
1114361a05
129112068
1358164b9
1438692c8
1525b3825
hex19e3ad0

27146960 has 40 divisors (see below), whose sum is σ = 66832776. Its totient is φ = 10219520.

The previous prime is 27146957. The next prime is 27146981. The reversal of 27146960 is 6964172.

It can be written as a sum of positive squares in 4 ways, for example, as 11999296 + 15147664 = 3464^2 + 3892^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 27146960.

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, 8621 + ... + 11340.

Almost surely, 227146960 is an apocalyptic number.

27146960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27146960 is an abundant number, since it is smaller than the sum of its proper divisors (39685816).

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

27146960 is a wasteful number, since it uses less digits than its factorization.

27146960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19991 (or 19985 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 27146960 is about 5210.2744649394. The cubic root of 27146960 is about 300.5433117435.

The spelling of 27146960 in words is "twenty-seven million, one hundred forty-six thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 16 17 20 34 40 68 80 85 136 170 272 340 680 1360 19961 39922 79844 99805 159688 199610 319376 339337 399220 678674 798440 1357348 1596880 1696685 2714696 3393370 5429392 6786740 13573480 27146960