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68495556 = 2235707963
BaseRepresentation
bin1000001010100…
…10100011000100
311202212221020110
410011102203010
5120013324211
610444033020
71461126333
oct405224304
9152787213
1068495556
11357337a8
121ab32770
1311262b1c
14914dd1a
15602eea6
hex41528c4

68495556 has 12 divisors (see below), whose sum is σ = 159822992. Its totient is φ = 22831848.

The previous prime is 68495549. The next prime is 68495561. The reversal of 68495556 is 65559486.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2853970 + ... + 2853993.

Almost surely, 268495556 is an apocalyptic number.

It is an amenable number.

68495556 is an abundant number, since it is smaller than the sum of its proper divisors (91327436).

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

68495556 is a wasteful number, since it uses less digits than its factorization.

68495556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5707970 (or 5707968 counting only the distinct ones).

The product of its digits is 1296000, while the sum is 48.

The square root of 68495556 is about 8276.2042024107. The cubic root of 68495556 is about 409.1546253708.

The spelling of 68495556 in words is "sixty-eight million, four hundred ninety-five thousand, five hundred fifty-six".

Divisors: 1 2 3 4 6 12 5707963 11415926 17123889 22831852 34247778 68495556