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288785061 = 3347227569
BaseRepresentation
bin10001001101101…
…000001010100101
3202010101210122000
4101031220022211
51042412110221
644353355513
710104426645
oct2115501245
9663353560
10288785061
11139014544
1280868b99
1347aa2246
142a4d4525
151a545e26
hex113682a5

288785061 has 16 divisors (see below), whose sum is σ = 436934400. Its totient is φ = 188426304.

The previous prime is 288785051. The next prime is 288785071. The reversal of 288785061 is 160587882.

It is an interprime number because it is at equal distance from previous prime (288785051) and next prime (288785071).

It is not a de Polignac number, because 288785061 - 211 = 288783013 is a prime.

It is a super-2 number, since 2×2887850612 = 166793622913547442, which contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 288784998 and 288785016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (288785051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112516 + ... + 115053.

It is an arithmetic number, because the mean of its divisors is an integer number (27308400).

Almost surely, 2288785061 is an apocalyptic number.

It is an amenable number.

288785061 is a deficient number, since it is larger than the sum of its proper divisors (148149339).

288785061 is a wasteful number, since it uses less digits than its factorization.

288785061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227625 (or 227619 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 45.

The square root of 288785061 is about 16993.6770888469. The cubic root of 288785061 is about 660.9849549851.

The spelling of 288785061 in words is "two hundred eighty-eight million, seven hundred eighty-five thousand, sixty-one".

Divisors: 1 3 9 27 47 141 423 1269 227569 682707 2048121 6144363 10695743 32087229 96261687 288785061