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87113542 = 2172562163
BaseRepresentation
bin1010011000100…
…11111101000110
320001220211022111
411030103331012
5134300113132
612351051234
72105311225
oct514237506
9201824274
1087113542
114519a76a
1225210b1a
1315081199
14b7d8cbc
1579ab647
hex5313f46

87113542 has 8 divisors (see below), whose sum is σ = 138356856. Its totient is φ = 40994592.

The previous prime is 87113539. The next prime is 87113549. The reversal of 87113542 is 24531178.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87113549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1281048 + ... + 1281115.

It is an arithmetic number, because the mean of its divisors is an integer number (17294607).

Almost surely, 287113542 is an apocalyptic number.

87113542 is a deficient number, since it is larger than the sum of its proper divisors (51243314).

87113542 is a wasteful number, since it uses less digits than its factorization.

87113542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2562182.

The product of its digits is 6720, while the sum is 31.

The square root of 87113542 is about 9333.4635586153. The cubic root of 87113542 is about 443.2974408289.

The spelling of 87113542 in words is "eighty-seven million, one hundred thirteen thousand, five hundred forty-two".

Divisors: 1 2 17 34 2562163 5124326 43556771 87113542