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87876542 = 21310393253
BaseRepresentation
bin1010011110011…
…10001110111110
320010100120221202
411033032032332
5134444022132
612415255502
72114636555
oct517161676
9203316852
1087876542
1145670a46
122551a592
131528a570
14b956d9c
157aac762
hex53ce3be

87876542 has 16 divisors (see below), whose sum is σ = 142134720. Its totient is φ = 40506912.

The previous prime is 87876541. The next prime is 87876557. The reversal of 87876542 is 24567878.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87876541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25388 + ... + 28640.

It is an arithmetic number, because the mean of its divisors is an integer number (8883420).

Almost surely, 287876542 is an apocalyptic number.

87876542 is a deficient number, since it is larger than the sum of its proper divisors (54258178).

87876542 is a wasteful number, since it uses less digits than its factorization.

87876542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4307.

The product of its digits is 752640, while the sum is 47.

The square root of 87876542 is about 9374.2488765767. The cubic root of 87876542 is about 444.5879146030.

The spelling of 87876542 in words is "eighty-seven million, eight hundred seventy-six thousand, five hundred forty-two".

Divisors: 1 2 13 26 1039 2078 3253 6506 13507 27014 42289 84578 3379867 6759734 43938271 87876542