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68759488 = 267314951
BaseRepresentation
bin1000001100100…
…10111111000000
311210101100021201
410012102333000
5120100300423
610453430544
71463305660
oct406227700
9153340251
1068759488
11358a4026
121b03b454
1311325cb5
1491bc1a0
1560832ad
hex4192fc0

68759488 has 56 divisors (see below), whose sum is σ = 160999424. Its totient is φ = 28512000.

The previous prime is 68759473. The next prime is 68759491. The reversal of 68759488 is 88495786.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11413 + ... + 16363.

Almost surely, 268759488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68759488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80499712).

68759488 is an abundant number, since it is smaller than the sum of its proper divisors (92239936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68759488 is a wasteful number, since it uses less digits than its factorization.

68759488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5001 (or 4991 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 55.

The square root of 68759488 is about 8292.1341040772. The cubic root of 68759488 is about 409.6794798158.

The spelling of 68759488 in words is "sixty-eight million, seven hundred fifty-nine thousand, four hundred eighty-eight".

Divisors: 1 2 4 7 8 14 16 28 31 32 56 62 64 112 124 217 224 248 434 448 496 868 992 1736 1984 3472 4951 6944 9902 13888 19804 34657 39608 69314 79216 138628 153481 158432 277256 306962 316864 554512 613924 1074367 1109024 1227848 2148734 2218048 2455696 4297468 4911392 8594936 9822784 17189872 34379744 68759488