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68747760 = 2432595483
BaseRepresentation
bin1000001100100…
…00000111110000
311210100202012100
410012100013300
5120044412020
610453300400
71463226534
oct406200760
9153322170
1068747760
1135896234
121b034700
1311320863
1491b7bc4
15607ea90
hex41901f0

68747760 has 60 divisors (see below), whose sum is σ = 230880312. Its totient is φ = 18332544.

The previous prime is 68747753. The next prime is 68747773. The reversal of 68747760 is 6774786.

It is a tau number, because it is divible by the number of its divisors (60).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47022 + ... + 48461.

Almost surely, 268747760 is an apocalyptic number.

68747760 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68747760 is an abundant number, since it is smaller than the sum of its proper divisors (162132552).

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

68747760 is a wasteful number, since it uses less digits than its factorization.

68747760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95502 (or 95493 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 45.

The square root of 68747760 is about 8291.4268977058. The cubic root of 68747760 is about 409.6561860892.

The spelling of 68747760 in words is "sixty-eight million, seven hundred forty-seven thousand, seven hundred sixty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 36 40 45 48 60 72 80 90 120 144 180 240 360 720 95483 190966 286449 381932 477415 572898 763864 859347 954830 1145796 1432245 1527728 1718694 1909660 2291592 2864490 3437388 3819320 4296735 4583184 5728980 6874776 7638640 8593470 11457960 13749552 17186940 22915920 34373880 68747760