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12760740 = 223457877
BaseRepresentation
bin110000101011…
…011010100100
3220000022110000
4300223122210
511231320430
61133301300
7213315216
oct60533244
926008400
1012760740
117226373
124334830
13284a345
1419a25b6
1511c0e60
hexc2b6a4

12760740 has 60 divisors (see below), whose sum is σ = 40035996. Its totient is φ = 3402432.

The previous prime is 12760733. The next prime is 12760763. The reversal of 12760740 is 4706721.

12760740 is a `hidden beast` number, since 12 + 7 + 607 + 40 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3175524 + 9585216 = 1782^2 + 3096^2 .

It is a tau number, because it is divible by the number of its divisors (60).

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

It is a zygodrome in base 3.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 2319 + ... + 5558.

Almost surely, 212760740 is an apocalyptic number.

12760740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12760740 is an abundant number, since it is smaller than the sum of its proper divisors (27275256).

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

12760740 is a wasteful number, since it uses less digits than its factorization.

12760740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7898 (or 7887 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 12760740 is about 3572.2177985112. The cubic root of 12760740 is about 233.6820138389.

The spelling of 12760740 in words is "twelve million, seven hundred sixty thousand, seven hundred forty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 81 90 108 135 162 180 270 324 405 540 810 1620 7877 15754 23631 31508 39385 47262 70893 78770 94524 118155 141786 157540 212679 236310 283572 354465 425358 472620 638037 708930 850716 1063395 1276074 1417860 2126790 2552148 3190185 4253580 6380370 12760740