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68775075 = 355211321
BaseRepresentation
bin1000001100101…
…10110010100011
311210102010200000
410012112302203
5120101300300
610454031043
71463402265
oct406266243
9153363600
1068775075
1135904806
121b048483
1311330115
1491c3b35
156087c00
hex4196ca3

68775075 has 36 divisors (see below), whose sum is σ = 127757448. Its totient is φ = 36676800.

The previous prime is 68775043. The next prime is 68775169. The reversal of 68775075 is 57057786.

It is not a de Polignac number, because 68775075 - 25 = 68775043 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 68775075.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 415 + ... + 11735.

It is an arithmetic number, because the mean of its divisors is an integer number (3548818).

Almost surely, 268775075 is an apocalyptic number.

68775075 is a deficient number, since it is larger than the sum of its proper divisors (58982373).

68775075 is a wasteful number, since it uses less digits than its factorization.

68775075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11346 (or 11329 counting only the distinct ones).

The product of its (nonzero) digits is 411600, while the sum is 45.

The square root of 68775075 is about 8293.0739174325. The cubic root of 68775075 is about 409.7104340486.

The spelling of 68775075 in words is "sixty-eight million, seven hundred seventy-five thousand, seventy-five".

Divisors: 1 3 5 9 15 25 27 45 75 81 135 225 243 405 675 1215 2025 6075 11321 33963 56605 101889 169815 283025 305667 509445 849075 917001 1528335 2547225 2751003 4585005 7641675 13755015 22925025 68775075