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87272842 = 247991099
BaseRepresentation
bin1010011001110…
…10110110001010
320002012220211111
411030322312022
5134320212332
612354320534
72106543526
oct514726612
9202186744
1087272842
1145299418
122528914a
1315108847
14b83ad86
1579dd947
hex533ad8a

87272842 has 8 divisors (see below), whose sum is σ = 131184000. Its totient is φ = 43544844.

The previous prime is 87272839. The next prime is 87272869. The reversal of 87272842 is 24827278.

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

It is a junction number, because it is equal to n+sod(n) for n = 87272795 and 87272804.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44592 + ... + 46507.

It is an arithmetic number, because the mean of its divisors is an integer number (16398000).

Almost surely, 287272842 is an apocalyptic number.

87272842 is a deficient number, since it is larger than the sum of its proper divisors (43911158).

87272842 is a wasteful number, since it uses less digits than its factorization.

87272842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91580.

The product of its digits is 100352, while the sum is 40.

The square root of 87272842 is about 9341.9934703467. The cubic root of 87272842 is about 443.5674879408.

The spelling of 87272842 in words is "eighty-seven million, two hundred seventy-two thousand, eight hundred forty-two".

Divisors: 1 2 479 958 91099 182198 43636421 87272842