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288888925 = 52136713267
BaseRepresentation
bin10001001110000…
…001100001011101
3202010121002002211
4101032001201131
51042423421200
644355520421
710105341523
oct2116014135
9663532084
10288888925
11139085586
12808b9111
1347b0a5c0
142a520313
151a566aba
hex1138185d

288888925 has 24 divisors (see below), whose sum is σ = 391565216. Its totient is φ = 210133440.

The previous prime is 288888893. The next prime is 288888961. The reversal of 288888925 is 529888882.

It is not a de Polignac number, because 288888925 - 25 = 288888893 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 288888925.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15142 + ... + 28408.

Almost surely, 2288888925 is an apocalyptic number.

288888925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

288888925 is a deficient number, since it is larger than the sum of its proper divisors (102676291).

288888925 is a wasteful number, since it uses less digits than its factorization.

288888925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13357 (or 13352 counting only the distinct ones).

The product of its digits is 5898240, while the sum is 58.

The square root of 288888925 is about 16996.7327742716. The cubic root of 288888925 is about 661.0641884379.

The spelling of 288888925 in words is "two hundred eighty-eight million, eight hundred eighty-eight thousand, nine hundred twenty-five".

Divisors: 1 5 13 25 65 67 325 335 871 1675 4355 13267 21775 66335 172471 331675 862355 888889 4311775 4444445 11555557 22222225 57777785 288888925