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87843116 = 2221960779
BaseRepresentation
bin1010011110001…
…10000100101100
320010021220002202
411033012010230
5134441434431
612414441032
72114440244
oct517060454
9203256082
1087843116
1145648919
1225503178
131527829a
14b948b24
157aa28cb
hex53c612c

87843116 has 6 divisors (see below), whose sum is σ = 153725460. Its totient is φ = 43921556.

The previous prime is 87843083. The next prime is 87843127. The reversal of 87843116 is 61134878.

It is a self number, because there is not a number n which added to its sum of digits gives 87843116.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10980386 + ... + 10980393.

It is an arithmetic number, because the mean of its divisors is an integer number (25620910).

Almost surely, 287843116 is an apocalyptic number.

It is an amenable number.

87843116 is a deficient number, since it is larger than the sum of its proper divisors (65882344).

87843116 is a wasteful number, since it uses less digits than its factorization.

87843116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21960783 (or 21960781 counting only the distinct ones).

The product of its digits is 32256, while the sum is 38.

The square root of 87843116 is about 9372.4658441629. The cubic root of 87843116 is about 444.5315374785.

The spelling of 87843116 in words is "eighty-seven million, eight hundred forty-three thousand, one hundred sixteen".

Divisors: 1 2 4 21960779 43921558 87843116