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87536940 = 22353534133
BaseRepresentation
bin1010011011110…
…11010100101100
320002201100002220
411031323110230
5134402140230
612404115340
72112023511
oct515732454
9202640086
1087536940
1145459887
1225395b50
131519bb0a
14b8a9308
157a41d10
hex537b52c

87536940 has 48 divisors (see below), whose sum is σ = 245857248. Its totient is φ = 23271424.

The previous prime is 87536923. The next prime is 87536941. The reversal of 87536940 is 4963578.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 87536892 and 87536901.

It is not an unprimeable number, because it can be changed into a prime (87536941) 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, 19114 + ... + 23246.

It is an arithmetic number, because the mean of its divisors is an integer number (5122026).

Almost surely, 287536940 is an apocalyptic number.

It is an amenable number.

87536940 is an abundant number, since it is smaller than the sum of its proper divisors (158320308).

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

87536940 is a wasteful number, since it uses less digits than its factorization.

87536940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4498 (or 4496 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 87536940 is about 9356.1177846370. The cubic root of 87536940 is about 444.0144666985.

The spelling of 87536940 in words is "eighty-seven million, five hundred thirty-six thousand, nine hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 353 706 1059 1412 1765 2118 3530 4133 4236 5295 7060 8266 10590 12399 16532 20665 21180 24798 41330 49596 61995 82660 123990 247980 1458949 2917898 4376847 5835796 7294745 8753694 14589490 17507388 21884235 29178980 43768470 87536940