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276725140 = 22513836257
BaseRepresentation
bin10000011111100…
…111110110010100
3201021201002112021
4100133213312110
51031320201030
643243102524
76600060556
oct2037476624
9637632467
10276725140
1113222776a
1278811a44
134543bbb3
1428a754d6
151946297a
hex107e7d94

276725140 has 12 divisors (see below), whose sum is σ = 581122836. Its totient is φ = 110690048.

The previous prime is 276725129. The next prime is 276725159. The reversal of 276725140 is 41527672.

276725140 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 46049796 + 230675344 = 6786^2 + 15188^2 .

It is a junction number, because it is equal to n+sod(n) for n = 276725096 and 276725105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6918109 + ... + 6918148.

It is an arithmetic number, because the mean of its divisors is an integer number (48426903).

Almost surely, 2276725140 is an apocalyptic number.

276725140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

276725140 is an abundant number, since it is smaller than the sum of its proper divisors (304397696).

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

276725140 is a wasteful number, since it uses less digits than its factorization.

276725140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13836266 (or 13836264 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 276725140 is about 16635.0575592632. The cubic root of 276725140 is about 651.6527093976.

The spelling of 276725140 in words is "two hundred seventy-six million, seven hundred twenty-five thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 13836257 27672514 55345028 69181285 138362570 276725140