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288052538 = 2712817219
BaseRepresentation
bin10001001010110…
…101010100111010
3202002000120210112
4101022311110322
51042220140123
644325544322
710065256214
oct2112652472
9662016715
10288052538
11138664154
12805750a2
13478a69b7
142a3835b4
151a44dd78
hex112b553a

288052538 has 16 divisors (see below), whose sum is σ = 439784640. Its totient is φ = 141472800.

The previous prime is 288052493. The next prime is 288052547. The reversal of 288052538 is 835250882.

It is a junction number, because it is equal to n+sod(n) for n = 288052495 and 288052504.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36293 + ... + 43511.

It is an arithmetic number, because the mean of its divisors is an integer number (27486540).

Almost surely, 2288052538 is an apocalyptic number.

288052538 is a deficient number, since it is larger than the sum of its proper divisors (151732102).

288052538 is a wasteful number, since it uses less digits than its factorization.

288052538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7573.

The product of its (nonzero) digits is 153600, while the sum is 41.

The square root of 288052538 is about 16972.1105935591. The cubic root of 288052538 is about 660.4256039702.

The spelling of 288052538 in words is "two hundred eighty-eight million, fifty-two thousand, five hundred thirty-eight".

Divisors: 1 2 71 142 281 562 7219 14438 19951 39902 512549 1025098 2028539 4057078 144026269 288052538