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87768046 = 2235973443
BaseRepresentation
bin1010011101100…
…11101111101110
320010011002010101
411032303233232
5134432034141
612413101314
72114005342
oct516635756
9203132111
1087768046
11455a7483
122548783a
1315250072
14b929622
157a8a531
hex53b3bee

87768046 has 32 divisors (see below), whose sum is σ = 141937920. Its totient is φ = 40607424.

The previous prime is 87768041. The next prime is 87768067. The reversal of 87768046 is 64086778.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a junction number, because it is equal to n+sod(n) for n = 87767987 and 87768005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87768041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 197901 + ... + 198343.

It is an arithmetic number, because the mean of its divisors is an integer number (4435560).

Almost surely, 287768046 is an apocalyptic number.

87768046 is a deficient number, since it is larger than the sum of its proper divisors (54169874).

87768046 is a wasteful number, since it uses less digits than its factorization.

87768046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600.

The product of its (nonzero) digits is 451584, while the sum is 46.

The square root of 87768046 is about 9368.4601723015. The cubic root of 87768046 is about 444.4048703977.

The spelling of 87768046 in words is "eighty-seven million, seven hundred sixty-eight thousand, forty-six".

Divisors: 1 2 23 46 59 73 118 146 443 886 1357 1679 2714 3358 4307 8614 10189 20378 26137 32339 52274 64678 99061 198122 601151 743797 1202302 1487594 1908001 3816002 43884023 87768046