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288739388056225 = 52109199532459339
BaseRepresentation
bin100000110100110110110000…
…0101010000110001010100001
31101212100012211101221110020211
41001221231200222012022201
5300321201231320244400
62502033013234134121
7114550506130306201
oct10151554052061241
91355305741843224
10288739388056225
11840017611569a7
1228473764a21341
13c516013516612
1451430bd354401
15235ab92900dba
hex1069b60a862a1

288739388056225 has 24 divisors (see below), whose sum is σ = 363137269880000. Its totient is φ = 227722209675840.

The previous prime is 288739388056211. The next prime is 288739388056247. The reversal of 288739388056225 is 522650883937882.

It is not a de Polignac number, because 288739388056225 - 211 = 288739388054177 is a prime.

It is a super-2 number, since 2×2887393880562252 (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 265687395 + ... + 266771944.

Almost surely, 2288739388056225 is an apocalyptic number.

288739388056225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

288739388056225 is a deficient number, since it is larger than the sum of its proper divisors (74397881823775).

288739388056225 is a wasteful number, since it uses less digits than its factorization.

288739388056225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532459657 (or 532459652 counting only the distinct ones).

The product of its (nonzero) digits is 2786918400, while the sum is 76.

The spelling of 288739388056225 in words is "two hundred eighty-eight trillion, seven hundred thirty-nine billion, three hundred eighty-eight million, fifty-six thousand, two hundred twenty-five".

Divisors: 1 5 25 109 199 545 995 2725 4975 21691 108455 542275 532459339 2662296695 13311483475 58038067951 105959408461 290190339755 529797042305 1450951698775 2648985211525 11549575522249 57747877611245 288739388056225