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280139150 = 2525602783
BaseRepresentation
bin10000101100101…
…001010110001110
3201112010112200002
4100230221112032
51033203423100
643444204302
76641100134
oct2054512616
9645115602
10280139150
11134149765
1279999692
1346065b15
14292c3754
15198d92d5
hex10b2958e

280139150 has 12 divisors (see below), whose sum is σ = 521058912. Its totient is φ = 112055640.

The previous prime is 280139147. The next prime is 280139203. The reversal of 280139150 is 51931082.

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 5 ways as a sum of consecutive naturals, for example, 2801342 + ... + 2801441.

It is an arithmetic number, because the mean of its divisors is an integer number (43421576).

Almost surely, 2280139150 is an apocalyptic number.

280139150 is a deficient number, since it is larger than the sum of its proper divisors (240919762).

280139150 is a wasteful number, since it uses less digits than its factorization.

280139150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5602795 (or 5602790 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 280139150 is about 16737.3579157524. The cubic root of 280139150 is about 654.3216176322.

The spelling of 280139150 in words is "two hundred eighty million, one hundred thirty-nine thousand, one hundred fifty".

Divisors: 1 2 5 10 25 50 5602783 11205566 28013915 56027830 140069575 280139150