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276081040 = 24531111323
BaseRepresentation
bin10000011101001…
…010100110010000
3201020111100222201
4100131022212100
51031134043130
643221212544
76561435664
oct2035124620
9636440881
10276081040
11131927854
1278561154
1345274981
14289488a4
1519386bca
hex1074a990

276081040 has 40 divisors (see below), whose sum is σ = 662600448. Its totient is φ = 106869120.

The previous prime is 276081019. The next prime is 276081049. The reversal of 276081040 is 40180672.

276081040 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (276081049) 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 7 ways as a sum of consecutive naturals, for example, 53182 + ... + 58141.

Almost surely, 2276081040 is an apocalyptic number.

276081040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

276081040 is an abundant number, since it is smaller than the sum of its proper divisors (386519408).

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

276081040 is a wasteful number, since it uses less digits than its factorization.

276081040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111367 (or 111361 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 276081040 is about 16615.6865642079. The cubic root of 276081040 is about 651.1467252728.

The spelling of 276081040 in words is "two hundred seventy-six million, eighty-one thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 31 40 62 80 124 155 248 310 496 620 1240 2480 111323 222646 445292 556615 890584 1113230 1781168 2226460 3451013 4452920 6902026 8905840 13804052 17255065 27608104 34510130 55216208 69020260 138040520 276081040