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87416428 = 221141471031
BaseRepresentation
bin1010011010111…
…01111001101100
320002111012210111
411031131321230
5134334311203
612401345404
72111012251
oct515357154
9202435714
1087416428
1145387290
1225338264
1315158cc8
14b877428
157a1b26d
hex535de6c

87416428 has 48 divisors (see below), whose sum is σ = 174763008. Its totient is φ = 37904000.

The previous prime is 87416419. The next prime is 87416429. The reversal of 87416428 is 82461478.

It is not an unprimeable number, because it can be changed into a prime (87416429) 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, 84273 + ... + 85303.

It is an arithmetic number, because the mean of its divisors is an integer number (3640896).

Almost surely, 287416428 is an apocalyptic number.

It is an amenable number.

87416428 is a deficient number, since it is larger than the sum of its proper divisors (87346580).

87416428 is a wasteful number, since it uses less digits than its factorization.

87416428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1134 (or 1132 counting only the distinct ones).

The product of its digits is 86016, while the sum is 40.

The square root of 87416428 is about 9349.6752884793. The cubic root of 87416428 is about 443.8106150617.

The spelling of 87416428 in words is "eighty-seven million, four hundred sixteen thousand, four hundred twenty-eight".

Divisors: 1 2 4 11 22 41 44 47 82 94 164 188 451 517 902 1031 1034 1804 1927 2062 2068 3854 4124 7708 11341 21197 22682 42271 42394 45364 48457 84542 84788 96914 169084 193828 464981 533027 929962 1066054 1859924 1986737 2132108 3973474 7946948 21854107 43708214 87416428