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87663051 = 32723101599
BaseRepresentation
bin1010011100110…
…10000111001011
320002221202002200
411032122013023
5134420204201
612410531243
72113060260
oct516320713
9202852080
1087663051
1145535603
1225436b23
1315214338
14b8dd267
157a69386
hex539a1cb

87663051 has 48 divisors (see below), whose sum is σ = 152755200. Its totient is φ = 47361600.

The previous prime is 87663047. The next prime is 87663053. The reversal of 87663051 is 15036678.

It is not a de Polignac number, because 87663051 - 22 = 87663047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 87662997 and 87663015.

It is not an unprimeable number, because it can be changed into a prime (87663053) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 146050 + ... + 146648.

It is an arithmetic number, because the mean of its divisors is an integer number (3182400).

Almost surely, 287663051 is an apocalyptic number.

87663051 is a deficient number, since it is larger than the sum of its proper divisors (65092149).

87663051 is a wasteful number, since it uses less digits than its factorization.

87663051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736 (or 733 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 87663051 is about 9362.8548530883. The cubic root of 87663051 is about 444.2275890669.

The spelling of 87663051 in words is "eighty-seven million, six hundred sixty-three thousand, fifty-one".

Divisors: 1 3 7 9 21 23 63 69 101 161 207 303 483 599 707 909 1449 1797 2121 2323 4193 5391 6363 6969 12579 13777 16261 20907 37737 41331 48783 60499 96439 123993 146349 181497 289317 423493 544491 867951 1270479 1391477 3811437 4174431 9740339 12523293 29221017 87663051