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86873974 = 2113948817
BaseRepresentation
bin1010010110110…
…01011101110110
320001110122200121
411023121131312
5134214431344
612342002154
72103262615
oct513313566
9201418617
1086873974
1145046780
122511635a
1314cc9125
14b77587c
157960684
hex52d9776

86873974 has 8 divisors (see below), whose sum is σ = 142157448. Its totient is φ = 39488160.

The previous prime is 86873971. The next prime is 86873987. The reversal of 86873974 is 47937868.

It is a happy number.

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 (86873971) 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, 1974387 + ... + 1974430.

It is an arithmetic number, because the mean of its divisors is an integer number (17769681).

Almost surely, 286873974 is an apocalyptic number.

86873974 is a deficient number, since it is larger than the sum of its proper divisors (55283474).

86873974 is a wasteful number, since it uses less digits than its factorization.

86873974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3948830.

The product of its digits is 2032128, while the sum is 52.

The square root of 86873974 is about 9320.6209020644. The cubic root of 86873974 is about 442.8907019908.

The spelling of 86873974 in words is "eighty-six million, eight hundred seventy-three thousand, nine hundred seventy-four".

Divisors: 1 2 11 22 3948817 7897634 43436987 86873974